FeStack

How to Migrate Your Angular Application State Management from Observable to Signals

2023-09-01T15:45:00.001+02:00

If you are an Angular developer, you might be familiar with the concept of Observable, which is a way of handling asynchronous data streams in your application. Observable allows you to subscribe to data changes and react accordingly, using operators like map, filter, switchMap, etc. Observable is a powerful tool for managing complex and dynamic data flows, but it also comes with some drawbacks, such as:

You have to manually unsubscribe from the Observable when you are done with it, otherwise you might create memory leaks or unwanted side effects.
You have to deal with error handling and retry logic in case the Observable fails or emits an error value.
You have to use RxJS library, which adds some extra weight and complexity to your codebase.

If you are looking for a simpler and lighter alternative to Observable, you might want to consider using Signals. Signals are a new feature introduced in Angular 12, which are based on the concept of reactive variables. Signals are similar to Observable in the sense that they represent data streams that can change over time, but they have some advantages, such as:

You don't have to unsubscribe from the Signal when you are done with it, as it is automatically garbage collected when there are no more references to it.
You don't have to worry about error handling and retry logic, as the Signal will always emit the latest valid value, even if there was an error or failure in the previous emission.
You don't have to use RxJS library, as Signals are built-in Angular features that use native JavaScript features like Promises and async/await.

In this tutorial, I will show you how to migrate your Angular application state management from Observable to Signals, using a simple example of a todo list app. I will assume that you have some basic knowledge of Angular and TypeScript, and that you have already set up an Angular project using Angular CLI.

Step 1: Create a Todo Model

First, let's create a simple model class for our todo items. We will use an interface called Todo, which has three properties: id, title and completed. We will also create a type alias called TodoList, which is an array of Todo items. Here is the code:

Step 2: Create a Todo Service

Next, let's create a service class that will handle the logic of fetching and updating our todo list from a mock API. We will use HttpClient module from Angular to make HTTP requests, and we will use Observable as our data source. Here is the code:

Step 3: Create a Todo Component

Now, let's create a component that will display our todo list and allow us to toggle the completion status of each item. We will use TodoService to get and update our data, and we will use Observable as our data source. Here is the code:

Step 4: Migrate from Observable to Signal

Finally, let's see how we can migrate our code from using Observable to using Signal. We will need to make some changes in our service and component classes, as follows:

In our service class, we will import Signal from @angular/core, and we will use Signal.of() method to create a Signal from an Observable. We will also use Signal.next() method to update the value of the Signal when we make a request to the API.
In our component class, we will import Signal from @angular/core, and we will use Signal.value property to access the current value of the Signal. We will also use async/await syntax to handle the asynchronous operations.

Here is the updated code:

That's it! We have successfully migrated our Angular application state management from Observable to Signals, using a simple example of a todo list app. As you can see, Signals are a simpler and lighter alternative to Observable, that can help you handle asynchronous data streams in your application without using RxJS library or worrying about error.

Advantages of using Angular Signals over RxJS Observable

Angular Signal is a library that provides a new way of working with asynchronous data streams in Angular applications. It is based on the concept of signals, which are similar to observables but have some key differences and advantages.

Signals are functions that return a stream of values over time. They can be composed, transformed, and subscribed to like observables, but they also have some unique features that make them easier to use and more efficient.

One of the main advantages of signals is that they are lazy by default. This means that they only start emitting values when they are subscribed to, and they stop when they are unsubscribed from. This avoids unnecessary computations and memory leaks that can happen with observables.

Another advantage of signals is that they are stateful. This means that they always remember the last value they emitted, and they can replay it to new subscribers. This makes it easier to share data between components and services, without having to use subjects or replay operators.

A third advantage of signals is that they are declarative. This means that they can be defined using a simple syntax that describes how the signal depends on other signals or inputs. This makes it easier to read and understand the logic of the signal, and to test and debug it.

In summary, Angular Signal is a library that offers a new way of working with asynchronous data streams in Angular applications. It is based on signals, which are lazy, stateful, and declarative functions that return a stream of values over time. Signals have some advantages over observables, such as avoiding unnecessary computations and memory leaks, making it easier to share data between components and services, and making it easier to read and understand the logic of the signal.

Yarn vs. NPM: Unleashing the Power of Package Managers for Efficient JavaScript Development

2023-08-02T22:58:00.001+02:00

In the world of JavaScript development, having a reliable and efficient package manager is crucial to streamline your workflow and manage dependencies effortlessly. While both Yarn and NPM serve this purpose, developers often find themselves debating which one to choose. In this comprehensive guide, we'll delve into the differences between Yarn and NPM, explore their features, and provide insights into when and why you might prefer one over the other. Let's embark on a journey to understand how to optimize your package management process and boost your productivity.

Yarn vs. NPM: A Comparative Analysis

Yarn: Accelerating Dependency Management

Yarn, developed by Facebook in collaboration with other tech giants, revolutionized the way developers manage dependencies. It was designed to address some of the performance issues that NPM faced, making it a popular choice among developers worldwide. Yarn harnesses the power of parallelism, which allows it to download and install packages simultaneously, significantly reducing the installation time. The use of a lockfile ensures consistency across environments and guarantees that everyone working on the project uses the same set of dependencies.

NPM: The Familiar Companion

NPM (Node Package Manager) has been a stalwart in the JavaScript ecosystem for years. It's the default package manager that comes with Node.js installations, making it instantly available to developers. While NPM has undergone significant improvements in recent years, it initially struggled with dependency resolution and consistency. However, the introduction of the package-lock.json file has addressed many of these concerns and paved the way for smoother dependency management.

Why Choose Yarn Over NPM?

1. Speed and Performance:

One of the primary reasons developers choose Yarn is its superior performance. Yarn's parallel installation of packages and intelligent caching mechanism result in faster installation times, especially for larger projects. This speed advantage can significantly reduce development bottlenecks and enhance overall efficiency.

2. Predictable Installs:

Yarn employs a deterministic algorithm to resolve dependencies, ensuring that all developers working on a project get the same versions of packages. This predictability minimizes the "works on my machine" issue and prevents unexpected bugs caused by inconsistent dependencies.

3. Offline Mode:

Yarn's offline mode is a boon for developers who frequently work in environments with limited or no internet access. It allows you to install packages without an internet connection, leveraging the cached versions stored on your machine.

4. Enhanced Security:

Yarn incorporates security features that help identify and mitigate vulnerabilities in your project's dependencies. The "yarn audit" command allows you to proactively identify security issues and take appropriate measures.

Yarn vs NPM: A Feature Comparison

Here is a table comparing the features of Yarn and NPM:

Feature	Yarn	NPM
Parallel installation	Yes	No
Caching	Yes	No
Dependency resolution	Faster	Slower
Checksum verification	Yes	No
Package locking	Yes	No
Security	Better	Worse
Community	Smaller	Larger
Package selection	More limited	More extensive

Let's clear some common FAQ's developers often look for:

Is Yarn Deprecated?

No, Yarn is not deprecated. Despite occasional discussions about its future, Yarn remains a relevant and actively maintained package manager. The Yarn team continues to release updates and improvements, addressing user feedback and staying aligned with the evolving JavaScript landscape.

Is Yarn Slower than NPM?

Historically, Yarn has been faster than NPM due to its parallel installation process and optimized caching. However, the performance gap has narrowed with the improvements in NPM, particularly after the introduction of the package-lock.json file. While Yarn still holds an edge in speed, the difference might not be as significant for smaller projects.

Why is Yarn Faster than NPM?

Yarn's speed advantage stems from its parallel processing and caching mechanisms. By downloading and installing packages concurrently, Yarn maximizes resource utilization and minimizes wait times. Additionally, Yarn's intelligent caching ensures that previously downloaded packages are reused, further boosting installation speed.

Is Yarn Still Relevant?

Absolutely, Yarn is still relevant and widely used in the JavaScript community. While NPM has made significant improvements to address past shortcomings, Yarn's speed and predictability continue to attract developers who prioritize efficient dependency management. The choice between Yarn and NPM often comes down to personal preference and project requirements.

Is it OK to Mix NPM and Yarn?

Yes, it's generally safe to mix NPM and Yarn in a project, but it's not recommended. Mixing package managers can lead to inconsistencies in the lockfile and unexpected behavior. If you decide to switch from one package manager to another, it's best to perform a clean installation of dependencies and ensure that your lockfile remains accurate.

Final take

In the realm of JavaScript package management, both Yarn and NPM offer powerful tools to simplify dependency management and accelerate development. While Yarn boasts faster installation speeds and predictability, NPM has made significant strides to address its earlier limitations. The choice between Yarn and NPM ultimately depends on your project's needs, your familiarity with the tools, and your preference for speed and predictability.

By understanding the strengths and weaknesses of both package managers, you can make an informed decision that aligns with your development goals. Whichever you choose, remember that efficient package management is the backbone of seamless JavaScript development, contributing to a more productive and enjoyable coding experience.

How to authenticate Yarn using .npmrc

Mastering Chat GPT: Tips and Tricks for Effective Usage

2023-05-01T17:41:00.001+02:00

Understanding Chat GPT

Chat GPT is an artificial intelligence language model that uses deep learning to generate natural language text based on the input it receives. Chat GPT is trained on a massive dataset of text, which allows it to understand language patterns and generate responses that sound human-like. Chat GPT works by predicting the next word in a sequence of text based on the previous words.

Chat GPT's features include the ability to generate text that is grammatically correct and contextually relevant, making it useful for a wide range of applications. However, Chat GPT also has limitations, such as a tendency to generate irrelevant or nonsensical responses, especially when presented with unfamiliar input.

To effectively use Chat GPT, it's important to research and understand its capabilities and limitations. You can start by exploring the OpenAI website and documentation, as well as reading articles and tutorials on Chat GPT. It's also helpful to experiment with different inputs and observe the output to better understand how Chat GPT works. By gaining a solid understanding of Chat GPT, you'll be better equipped to use it effectively.

Best Practices for Using Chat GPT Effectively

To get the most out of Chat GPT, it's important to use it effectively. Here are some best practices to help you optimize your chatbot's performance and achieve your goals:

Defining your audience and goals: Before you start building your chatbot, define your target audience and goals. Understanding who you're trying to reach and what you want to achieve will help you create a chatbot that is tailored to your users' needs.
Creating a conversational tone: Chat GPT is designed to simulate human conversation, so it's important to create a conversational tone that feels natural to your users. Avoid using overly technical language or jargon and focus on using language that is easy to understand.
Choosing the right format and channels: Consider the format and channels that your audience prefers when communicating. This could include social media, SMS, email, or voice assistants. Choosing the right format and channels will help you reach your audience more effectively.
Incorporating personalization and empathy: Chat GPT can be programmed to personalize conversations and respond with empathy. By incorporating personalization and empathy into your chatbot, you can create a more engaging and meaningful experience for your users.
Using clear and concise language: Chat GPT is most effective when it can understand the intent behind the user's input. To achieve this, use clear and concise language that is easy for Chat GPT to understand.
Optimizing Chat GPT's performance: There are several techniques you can use to optimize Chat GPT's performance, such as fine-tuning the model, limiting the scope of the conversation, and using context to generate more relevant responses.
Maximizing Chat GPT's potential with advanced techniques: Advanced techniques like sentiment analysis, entity recognition, and summarization can help you take Chat GPT to the next level and create a more sophisticated chatbot.
Getting feedback and improving your chatbot: Finally, it's important to regularly get feedback from your users and use that feedback to improve your chatbot. By continually iterating and refining your chatbot, you can ensure that it continues to meet the needs of your users over time.

Advanced Techniques for Chat GPT

While the best practices outlined in section III can help you create an effective chatbot with Chat GPT, there are also more advanced techniques that can take your chatbot to the next level. Here are some examples:

Using multi-turn conversations: Instead of treating each user input as a separate query, you can create a more natural conversation flow by using multi-turn conversations. This involves keeping track of the context of the conversation and using it to provide more relevant responses.
Incorporating machine learning: Machine learning can be used to improve Chat GPT's performance by allowing it to learn from user interactions and adapt its responses over time. This can help make your chatbot more effective and efficient.
Enhancing personalization with user data: By incorporating user data such as their location, interests, and past interactions, you can create a more personalized experience for your users. This can help increase engagement and satisfaction with your chatbot.
Customizing Chat GPT's responses with templates: You can create templates for different types of responses, such as greetings, product recommendations, or FAQs. This can help ensure consistency in your chatbot's responses while also allowing for some customization.
Creating context-aware chatbots: By using natural language processing and machine learning, you can create chatbots that are aware of the context of the conversation and can provide more relevant responses. For example, a chatbot for a restaurant could recommend nearby locations based on the user's location and past preferences.

By incorporating these advanced techniques into your chatbot, you can enhance its effectiveness and provide a more engaging experience for your users.

Frequently Asked Questions About Chat GPT

How do I get the most out of GPT chat?

To get the most out of Chat GPT, it's important to define your audience and goals, create a conversational tone, choose the right format and channels, incorporate personalization and empathy, use clear and concise language, and optimize Chat GPT's performance.

How do you use ChatGPT effectively?

To use Chat GPT effectively, follow the best practices outlined in section III, and consider incorporating advanced techniques such as multi-turn conversations, machine learning, and personalization.

How do I make my chatbot more effective?

To make your chatbot more effective, focus on providing value to your users by answering their questions, solving their problems, and providing personalized recommendations. Continuously gather feedback and use it to improve your chatbot over time.

How do you use OpenAI chat?

OpenAI offers several chatbots, including Chat GPT, which can be accessed through an API or pre-built integrations. To use OpenAI chat effectively, it's important to understand its features and limitations, and to follow best practices for chatbot design and development.

Does Chat GPT give the same answer to everyone?

Chat GPT's responses are generated based on the input it receives, so it may provide different responses to different users. However, its responses are also influenced by its training data, so it may provide similar responses for similar inputs.

Is Chat GPT plus worth it?

Chat GPT plus is a paid version of Chat GPT that offers additional features and capabilities, such as higher response quality and greater control over training data. Whether it's worth it depends on your specific needs and use case.

Conclusion

In conclusion, Chat GPT is a powerful tool that can greatly benefit businesses and individuals alike. By understanding its capabilities and limitations and implementing best practices, you can effectively utilize Chat GPT to achieve your goals.

Key takeaways from this article include defining your audience and goals, creating a conversational tone, using clear and concise language, optimizing performance, and incorporating advanced techniques such as multi-turn conversations, machine learning, and personalization.

While Chat GPT Plus may offer additional benefits, it's important to weigh the cost and consider whether it's worth it for your specific needs.

As technology continues to evolve, there is no doubt that Chat GPT and similar tools will play an increasingly important role in communication and problem-solving. By staying informed and experimenting with new techniques, you can stay ahead of the curve and leverage the full potential of Chat GPT.

Additional Resources

If you're interested in learning more about Chat GPT and how to use it effectively, check out the following resources:

OpenAI's official documentation: This is the go-to resource for developers who want to learn more about the technical details of Chat GPT and how to integrate it into their projects. You can find documentation on the GPT-3 API, code samples, and tutorials on various topics related to Chat GPT.

Chatbot Academy's guide to Chat GPT: This is a comprehensive guide that covers everything from the basics of Chat GPT to advanced techniques for building effective chatbots. It includes tips for creating engaging conversations, optimizing performance, and using machine learning to improve your chatbot's effectiveness.

Chat GPT tutorial by FreeCodeCamp: This video tutorial is aimed at beginners who want to learn how to build a chatbot using Chat GPT. It covers the basics of creating a chatbot, integrating Chat GPT, and deploying your bot to a website.

Chat GPT chatbot templates by BotStar: BotStar is a chatbot platform that offers a variety of pre-built chatbot templates that you can customize to fit your needs. They have several templates that use Chat GPT, such as a customer service chatbot and a lead generation chatbot.

These resources should give you a good starting point for learning more about Chat GPT and how to use it effectively.

Boost Your Development Experience with 13 Essential AI extensions for VS Code

2023-04-10T16:48:00.004+02:00

Visual Studio Code is one of the most popular code editors among developers, and its vast library of extensions makes it an even more powerful tool for programming. With the growing popularity of artificial intelligence (AI) and machine learning (ML), many developers are turning to VS Code to build and train their AI models.

In this article, we will explore 13 essential AI extensions for VS Code that can help you work more efficiently with AI and ML. These extensions offer a wide range of features, from code completion and debugging to model visualization and deployment.

Whether you're a beginner or an experienced AI developer, these extensions can help you streamline your workflow and create more accurate and effective AI models. So, let's dive in and explore the world of AI extensions for VS Code!

1. GitHub Copilot - Your AI pair programmer

GitHub Copilot is an AI-powered code suggestion tool developed by OpenAI in collaboration with GitHub. It uses OpenAI's GPT (Generative Pre-trained Transformer) language model to provide intelligent code completions and suggestions within the VS Code editor.

GitHub Copilot analyzes the context of your code and generates suggestions for code snippets, function calls, and even entire functions based on patterns and examples from millions of lines of code across the internet. As you type, Copilot offers up suggestions in a dropdown menu, allowing you to quickly insert code snippets or function calls without having to type them out manually.

2. Tabnine AI Autocomplete

Tabnine is an AI code assistant that makes you a better developer. Tabnine will increase your development velocity with real-time code completions in all the most popular coding languages and IDEs.

Whether you call it IntelliSense, intelliCode, autocomplete, AI-assisted code completion, AI-powered code completion, AI copilot, AI code snippets, code suggestion, code prediction, code hinting, or content assist, using Tabnine can massively impact your coding velocity, significantly cutting down your coding time.

3. ChatGPT - Genie AI

Your best AI pair programmer. Save conversations and continue any time. A Visual Studio Code - ChatGPT Integration. Supports GPT-4, GPT3.5, GPT3 and Codex models. Create new files, view diffs with one click; your copilot to learn code, add tests, find bugs and more.

The extension comes with context menu commands, copy/move suggested code into editor with one-click, conversation window and customization options for OpenAI's ChatGPT prompts.

Some interesting features:

Store your conversation history on your disk and continue at any time.
Quick fix the problems in your code
Supports Azure OpenAI Service
See diff between your code and Genie's suggestion right within editor with one click.
Get streaming answers to your prompt in editor or sidebar conversation.
Customize what you are asking with the selected code. The extension will remember your prompt for subsequent questions.
Automatic partial code response detection. If AI doesn't finish responding, you will have the option to continue and combine answers
Copy or insert the code ChatGPT is suggesting right into your editor.

4. AI Python Docstring Generator

Visual Studio Code extension to quickly generate docstrings for python functions using AI(NLP) technology. This project is forked for NilsJPWerner/autoDocstring. Previously, the description of the function had to be written by the user, but the AI would see the code and summarize.

Features:

AI Quickly generate a docstring snippet that can be tabbed through.
Choose between several different types of docstring formats.
Infers parameter types through pep484 type hints, default values, and var names.
Support for args, kwargs, decorators, errors, and parameter types

5. CodeGPT: write and improve code using AI

This Visual Studio Code extension allows you to use the official OpenAI API to generate code or natural language responses to your questions from OpenAI's GPT3 or ChatGPT, right within the editor.

Supercharge your coding with AI-powered assistance! Automatically write new code from scratch, ask questions, get explanations, refactor code, find bugs and more.

Features:

Ask general questions or use code snippets from the editor to query GPT3 via an input box in the sidebar.
Right click on a code selection and run one of the context menu shortcuts.
View GPT's responses in a panel next to the editor.
Insert code snippets from the AI's response into the active editor by clicking on them.

6. IntelliCode

The Visual Studio IntelliCode extension provides AI-assisted development features for Python, TypeScript/JavaScript and Java developers in Visual Studio Code, with insights based on understanding your code context combined with machine learning.

For Python users:

Set up the Python extension by following the steps in the Python tutorial
Make sure that you're using Pylance as the Python language server by opening the VSCode settings page (File -> Preferences -> Settings)
Start editing Python files
After the Python language server finishes initializing, you should now see recommended completions

For JAVA users:

Set up the Java extension for Visual Studio Code by following the steps in the Java Tutorial
Make sure that you have a minimum of Java 8 Update 151 installed
Reload Visual Studio Code after enabling the Java extension
After the Java language server finishes initializing, you should now see recommended completions

7. Codeium: AI Coding Autocomplete for Python, Javascript, Typescript, Java, Go, and more

Codeium is the modern coding superpower, a free code acceleration toolkit built on cutting edge AI technology. Currently, Codeium provides code completion tool in over 40+ languages, with lightning fast speeds and state-of-the-art suggestion quality.

With Codeium, you get:

Unlimited single and multi-line code completions forever
Support for 40+ programming languages: Javascript, Python, Typescript, PHP, Go, Java, C, C++, Rust, Ruby, and more.
Support through our Discord Community

8. ChatGPT: write and improve code using AI

This Visual Studio Code extension allows you to use the ChatGPT API to generate code or natural language responses from OpenAI's ChatGPT or GPT4 to your questions, right within the editor.

Supercharge your coding with AI-powered assistance! Automatically write new code from scratch, ask questions, get explanations, refactor code, find bugs and more.

Features:

💡 Ask general questions or use code snippets from the editor to query ChatGPT via an input box in the sidebar
🖱️ Right click on a code selection and run one of the context menu shortcuts
- automatically write documentation for your code
- explain the selected code
- refactor or optimize it
- find problems with it
View ChatGPT's responses in a panel next to the editor
See the response as it is being generated in real time
Ask follow-up questions to the response (conversation context is maintained)
Insert code snippets from the AI's response into the active editor by clicking on them

9. Denigma AI

AI that reads and explains complex code naturally, like a human Denigma explains code in conversational English. Powered by machine learning.

10. Dev Tools AI

Integrate dev-tools.ai into your IDE experience where it will learn from your tests, so you don't have to update them.

Each locator (selector) within your code will be decorated to indicate coverage by dev-tools.ai.

When mousing over a decoration, a hover (tooltip) will be displayed showing the image captured and utilized by dev-tools.ai.

Current support:

Python (Selenium)
Java (Selenium)
Cypress.io
Webdriver.io
Playwright

11. Inkling

This VS Code extension is a language support for the inkling language

Features:

Support for both Inkling v1 and v2 languages.
Syntax coloring.
Error and warning reporting.
Command to convert between v1 and v2 Inkling versions.

12. AICodeHelper

This extension utilizes GPT artificial intelligence to add comments to code, perform code reviews, and even refactor and generate code.

Features:

Code Completion: AICodeHelper can suggest code completions based on machine learning algorithms.

Code Generation: AICodeHelper can generate code snippets based on user input or a selected programming language.

Syntax Highlighting: AICodeHelper can highlight syntax for various programming languages to improve code readability.

Code Formatting: AICodeHelper can format code according to user-defined preferences or commonly accepted standards.

Debugging Assistance: AICodeHelper can assist with debugging by analyzing code and providing suggestions for improvement.

AI Code Analysis: AICodeHelper uses machine learning algorithms to analyze code and provide suggestions for optimization.

Refactoring: AICodeHelper can assist with refactoring code by providing suggestions for improvements in code structure and design.

13. BLACKBOX AI

Blackbox code autocomplete is build to make developers faster while writing code.

Blackbox code autocomplete is available in 20+ programming languages including Python, JavaScript, TypeScript, Go, and Ruby.

Take your Angular components to the next level with Dynamic Injection: A hands-on Tutorial

2023-03-25T22:17:00.006+01:00

Angular Dynamic Injection is a technique that enables a component to dynamically inject services or other components at runtime, based on certain conditions. This technique is useful when we don't know the exact dependencies of a component at the time of its creation, or when we need to swap out dependencies at runtime based on user input or other factors. In this tutorial, we'll explore how to use dynamic injection in an Angular application.

Advantages:

The advantages of dynamic injection in Angular are:

It allows for more flexibility in component creation and reuse.
It reduces the amount of code needed to create components with complex dependencies.
It enables conditional dependency injection based on runtime factors, such as user input or data from an API.
It allows for easier testing of components, as dependencies can be easily swapped out with mock objects.

Example:

Let's create an example where we use dynamic injection to create a component that displays a list of items. The items could be retrieved from an API, but we want to provide the option to display a default list if the API is unavailable.

To start, we'll create a new Angular project using the Angular CLI:

Next, we'll create a service that retrieves the list of items from an API:

In the item.service.ts file, we'll create a method that retrieves the list of items:

Now, let's create a component that displays the list of items:

In the item-list.component.ts file, we'll inject the ItemService and retrieve the list of items:

We can now use this component in our application, and it will retrieve the list of items from the API and display them. However, if the API is unavailable, the component will fail to load.

To provide a default list of items, we can create another component that generates a list of items at runtime:

In the default-item-list.component.ts file, we'll create a method that generates a list of items:

We can now modify the ItemListComponent to use dynamic injection, and inject either the ItemService or the DefaultItemListComponent at runtime, based on whether the API is available.

In the item-list.component.ts file, we'll modify the ngOnInit method to check whether the API is available:

In this modified version of ItemListComponent, we inject the ComponentFactoryResolver and ViewContainerRef, which allow us to dynamically create and insert a component at runtime.

In the ngOnInit method, we first attempt to retrieve the list of items from the API using the ItemService. If the API call is successful, we create a new instance of the ItemListComponent and pass in the retrieved list of items.

If the API call fails, we create a new instance of the DefaultItemListComponent, which displays a default list of items.

We can now use the ItemListComponent in our application, and it will display either the list of items retrieved from the API or a default list of items, depending on whether the API is available.

Conclusion:

In this tutorial, we learned how to use dynamic injection in an Angular application. We explored the advantages of dynamic injection and created an example that demonstrates how to use dynamic injection to create a component that displays a list of items. We used the ComponentFactoryResolver and ViewContainerRef to dynamically create and insert a component at runtime, based on whether the API is available. Dynamic injection is a powerful technique that allows for more flexibility in component creation and reuse, and can greatly simplify the code required to create components with complex dependencies.

10 Essential Angular best practices every Developer should know

2023-03-22T09:00:00.000+01:00

Angular is a popular open-source JavaScript framework used for building web and mobile applications. It's a comprehensive framework that includes features like two-way data binding, dependency injection, and component-based architecture. However, building large-scale applications with Angular can be a daunting task without proper guidance and best practices. In this article, we'll discuss the top 10 essential Angular best practices that every developer should know.

1. Use Angular CLI for Project Setup

Angular CLI (Command Line Interface) is a powerful tool that simplifies the Angular project setup process. It generates the project structure, creates components, services, and pipes, and installs dependencies automatically. By using Angular CLI, developers can save time and focus on building the actual application.

2. Follow the Single Responsibility Principle (SRP)

The Single Responsibility Principle is a software design principle that states that a class or function should have only one reason to change. In the context of Angular, it means that each component, service, or directive should have only one responsibility. This makes the codebase more modular, easier to test, and maintainable.

3. Use Reactive Forms Instead of Template-Driven Forms

Angular provides two types of forms: template-driven forms and reactive forms. Reactive forms are more powerful, flexible, and scalable than template-driven forms. They use a reactive programming approach and provide features like dynamic form controls, form validation, and custom form controls. By using reactive forms, developers can build complex forms with ease and maintain them easily.

4. Use Lazy Loading for Optimal Performance

Lazy loading is a technique that loads only the required modules when a user navigates to a specific route. This improves the application's performance by reducing the initial loading time and optimizing resource usage. By using lazy loading, developers can improve the user experience and reduce the load time of the application.

5. Use Angular Universal for Server-Side Rendering

Angular Universal is a platform that allows developers to render Angular applications on the server-side. It improves the application's performance by reducing the initial load time and improving SEO. By using Angular Universal, developers can provide a better user experience and increase the visibility of the application.

6. Use the Right Angular Architecture

Angular follows a component-based architecture, where each feature is built as a component. However, there are different approaches to building the architecture of an Angular application. The most common ones are monolithic architecture and microservices architecture. Choosing the right architecture depends on the project's requirements, scale, and complexity.

7. Optimize Angular Performance

Angular provides several tools and techniques to optimize application performance. Some of them include Ahead-of-Time (AOT) compilation, Tree shaking, and Change Detection Strategy. By using these tools and techniques, developers can improve the application's performance and reduce the load time.

8. Use Angular Material for UI Components

Angular Material is a UI component library for Angular applications. It provides a set of reusable UI components, including buttons, cards, dialogs, menus, and more. By using Angular Material, developers can save time and effort in building custom UI components and ensure consistency across the application.

9. Follow Code Standards and Conventions

Following code standards and conventions is essential for building scalable and maintainable code. Angular has its own style guide, which includes guidelines for coding standards, file structure, naming conventions, and more. By following these guidelines, developers can ensure consistency across the codebase and make it easier for other developers to understand and maintain the code.

10. Write Unit and Integration Tests

Unit and integration tests are essential for ensuring the quality and reliability of the code. Angular provides a robust testing framework that allows developers to write unit tests, integration tests, and end-to-end tests. By writing tests, developers can catch bugs early in the development cycle, reduce the risk of introducing new bugs, and ensure that the application works as intended.

In conclusion, Angular is a powerful framework for building web and mobile applications, but it requires developers to follow best practices to ensure their codebase is scalable and maintainable. By using Angular CLI, following the Single Responsibility Principle, using reactive forms, lazy loading, Angular Universal, choosing the right architecture, optimizing performance, using Angular Material, following code standards and conventions, and writing unit and integration tests, developers can build efficient and effective applications. These best practices not only improve the application's performance but also make it easier to maintain and extend in the future. By following these best practices, developers can build robust and reliable Angular applications that meet the business requirements and user needs.

Mastering Git Monorepos: A Beginner's Step-by-Step Guide

2023-03-19T18:18:00.011+01:00

A monorepo is a Git repository that contains multiple projects, components, or libraries. It can be a good solution for managing large codebases with multiple dependencies, as it allows for easier code sharing and versioning across projects.

So let's follow the steps below:

Step 1

Create a new Git repository: Start by creating a new Git repository. For example, you could create a new repository called my-monorepo using the command line:

Step 2

Define your monorepo structure: Decide on the structure of your monorepo. For this example, let's say we want to create a monorepo for a web application that consists of multiple projects, including a frontend app, a backend API, and a shared library. Create a directory structure that reflects this:

Step 3

Add your projects: Add your existing projects to the monorepo. For each project, create a subdirectory in the monorepo and copy the project files into it. For example, to add the frontend app, we could do:

Repeat this process for the backend API and shared library projects.

Step 4

Set up Git submodules: Use Git submodules to manage dependencies between your projects. For example, let's say the frontend app depends on the shared library. To add the shared library as a submodule of the frontend app, navigate to the frontend directory and run:

This will add the shared library as a submodule in the shared-library subdirectory of the frontend directory.

Step 5

Create a build system: To build and test your projects, you'll need a build system that can handle dependencies between projects. For this example, let's use Bazel as the build system. Create a WORKSPACE file in the root directory of your monorepo, and add the Bazel rules for each project:

This defines the dependencies for each project and specifies the rules for building and testing them using Bazel.

Step 6

Add a root BUILD.bazel file: In the root directory of your monorepo, create a BUILD.bazel file that defines targets for building and testing the entire monorepo. For example, to build all projects and run their tests, you could define a target like this:

This defines a frontend_tests target that runs all test files in the frontend project, and a backend_image target that builds a Docker image for the backend API

Step 7

Commit changes: Commit your changes to Git:

Step 8

Manage your monorepo: You can now manage your monorepo using standard Git commands. For example, to update the shared library to a new version, navigate to the shared-library directory and run:

To update the frontend app to use the new version of the shared library, navigate to the frontend directory and run:

Step 9

Build and test your monorepo: To build and test your monorepo using Bazel, navigate to the root directory and run:

This will build and run all tests for all projects in the monorepo.

That's a brief overview of how to set up a Git monorepo using Bazel. Of course, the specifics will depend on your specific use case, but hopefully this gives you a good starting point.

Conclusion

In conclusion, using a Git monorepo can provide a number of benefits for managing multiple related projects or services. By keeping all the code in one repository, it becomes easier to share code between projects, enforce consistent coding practices and tooling, and manage dependencies. Using a build system like Bazel can also make it easier to build and test multiple projects in a monorepo.

However, setting up and managing a Git monorepo can be complex and requires careful planning and coordination. It's important to carefully consider the structure of your monorepo, including how to organize projects and dependencies, and to use tools like submodules and a build system to help manage complexity.

Overall, a Git monorepo can be a powerful tool for managing complex software projects, but it requires careful planning and management to be successful.

JavaScript Regex Tutorial Zero to Hero

2023-03-17T15:22:00.004+01:00

JavaScript regular expressions, also known as regex, are powerful tools for working with text. They allow you to search, replace, and manipulate text based on patterns.

In this tutorial, I will cover the basics of regex and gradually move on to more advanced topics.

Basic syntax

In JavaScript, you create a regular expression by enclosing a pattern between two forward slashes /pattern/. For example, the pattern /hello/ matches the word "hello" in a text.

You can also create a regular expression using the RegExp constructor. For example:

This is equivalent to the /hello/ pattern.

To test if a string matches a regular expression, you can use the test() method. For example:

Character classes

Character classes allow you to match a set of characters. For example, the pattern /[aeiou]/ matches any vowel.

Here are some common character classes:

[a-z] matches any lowercase letter
[A-Z] matches any uppercase letter
[0-9] matches any digit
. matches any character except newline
\d matches any digit (equivalent to [0-9])
\w matches any word character (letters, digits, or underscore)
\s matches any whitespace character (space, tab, or newline)

For example, the pattern /[a-z]+\d/ matches any sequence of lowercase letters followed by a digit.

Quantifiers

Quantifiers allow you to match a certain number of occurrences of a character or group.

Here are some common quantifiers:

+ matches one or more occurrences
* matches zero or more occurrences
? matches zero or one occurrence
{n} matches exactly n occurrences
{n,} matches at least n occurrences
{n,m} matches between n and m occurrences

For example, the pattern /a+/ matches one or more "a" characters, while the pattern /a*/ matches zero or more "a" characters.

Anchors

Anchors allow you to match the beginning or end of a line or string.

Here are some common anchors:

^ matches the beginning of a line or string
$ matches the end of a line or string
\b matches a word boundary (the boundary between a word character and a non-word character)

For example, the pattern /^hello/ matches the word "hello" only if it appears at the beginning of a line or string.

Groups and capturing

Groups allow you to match a sequence of characters as a single unit. You can also capture the matched text and use it in a replacement string.

To create a group, enclose the pattern in parentheses (). For example, the pattern /(hello)+/ matches one or more occurrences of the word "hello".

To capture the matched text, use a backslash followed by a number to refer to the group. For example, the replacement string "-$1-" inserts a hyphen before and after the captured text.

Here's an example:

Alternation

Alternation allows you to match one of several patterns. To use alternation, separate the patterns with the | symbol. For example, the pattern /(cat|dog)/ matches either the word "cat" or the word "dog".

Lookahead and lookbehind

Lookahead and lookbehind allow you to match a pattern only if it is followed by or preceded by another pattern, respectively.

Lookahead uses the syntax (?=pattern) to match the pattern only if it is followed by another pattern. For example, the pattern /hello(?= world)/ matches the word "hello" only if it is followed by the word "world".

Lookbehind uses the syntax `(?<=pattern)` to match the pattern only if it is preceded by another pattern. For example, the pattern `/(?<=hello )world/` matches the word "world" only if it is preceded by the word "hello".

Note that not all browsers support lookbehind.

Flags

Flags modify the behavior of a regular expression. They are placed after the second forward slash.

Here are some common flags:

g (global) matches all occurrences of the pattern, not just the first one
i (case insensitive) matches the pattern regardless of case
m (multiline) treats the string as multiple lines, allowing ^ and $ to match at the beginning and end of each line, respectively
s (dotall) allows . to match newline characters as well

For example, the pattern /hello/g matches all occurrences of the word "hello" in a string.

Playgrounds to practice regex online:

Regex101: This website allows you to enter your regular expression and test it against a sample text. It also provides a detailed breakdown of the matches and captures.

RegExr: This website provides a real-time editor that allows you to create and test regular expressions against a sample text. It also provides a cheat sheet and quick reference guide.

RegexPal: This website is a simple online regex tester that allows you to enter your regular expression and test it against a sample text. It provides a detailed breakdown of the matches and captures.

Debuggex: This website provides an interactive regex editor that allows you to visualize your regular expression as you build it. It also provides a detailed breakdown of the matches and captures.

Regular Expressions 101: This website provides a simple interface for testing regular expressions against a sample text. It also provides a cheat sheet and quick reference guide.

Conclusion

JavaScript regular expressions are a powerful tool for working with text. They allow you to search, replace, and manipulate text based on patterns. By mastering the basic syntax and gradually moving on to more advanced topics, you can become proficient in using regular expressions to solve a wide range of text processing problems.

Best practices for naming variables in JavaScript

2023-03-10T15:03:00.001+01:00

Choosing the right naming convention for variables in JavaScript is crucial for writing code that is easy to read, understand, and maintain. A naming convention is a set of rules and guidelines that dictate how variables should be named in your code. By following a consistent and meaningful naming convention, you can make your code more readable and maintainable, avoid naming conflicts and confusion, and ensure that your code is easier to work with and debug. In this article, we will explore the best practices for choosing naming conventions for variables in JavaScript and provide examples of how to apply them in your own code.

Use descriptive and meaningful names: Variable names should clearly describe what the variable represents or stores. Avoid using names that are too short or cryptic.

Follow a consistent naming convention: Use a consistent naming convention throughout your codebase. This makes it easier for other developers to understand your code and avoids confusion.

Use camelCase: JavaScript conventionally uses camelCase for variable names, where the first word is in lowercase and subsequent words are in uppercase, without spaces.

Avoid reserved words: Do not use reserved words such as "function", "var", "let", "const", "if", "else", "while", "for", "switch", "case", "return", "break", "continue", "true", "false", "null", "undefined", "NaN", "Infinity", "this", "new", "delete", "typeof", "instanceof", "try", "catch", "finally", "throw", "with", "debugger", "yield", or "await" as variable names.

Use nouns for variable names: Use nouns to name variables, as they represent things or objects.

Use verbs for function names: Use verbs to name functions, as they represent actions or operations.

Use singular or plural form consistently: Use either singular or plural form consistently for all related variables, depending on the context.

Avoid abbreviations: Avoid using abbreviations or acronyms, unless they are commonly used and well-understood.

Use meaningful prefixes or suffixes: Use meaningful prefixes or suffixes to indicate the type or purpose of a variable, such as "is" for boolean values, "$" for jQuery objects, or "List" for arrays.

By following these guidelines, you can choose a naming convention that makes your code more readable and maintainable, and helps avoid errors caused by naming conflicts or confusion

4 Best way to check Undefined or Null in JavaScript

2023-03-07T21:17:00.001+01:00

JavaScript is a dynamically-typed language, which means that variables can hold values of different types at different points in time. However, this flexibility can also lead to some challenges, especially when it comes to dealing with null or undefined values. Fortunately, there are several reliable ways to check for null or undefined values in JavaScript, each with its own strengths and weaknesses. In this article, we'll explore four of the best ways to check for null or undefined values in JavaScript, and discuss when each method is most appropriate.

1. Using the typeof operator

The typeof operator returns a string indicating the type of the operand. If a variable is undefined, the typeof operator will return the string "undefined". Similarly, if a variable is null, the typeof operator will return the string "object". Here's an example:

One potential drawback of using the typeof operator to check for undefined values is that it will also return "undefined" for undeclared variables. In other words, if you try to check the type of a variable that has not been declared, the typeof operator will still return "undefined", even though the variable does not exist.

2. Using the strict equality operator (===)

The strict equality operator (===) checks if two values are equal in value and type. If a variable is null or undefined, it will be strictly equal to null or undefined, respectively. Here's an example:

One potential drawback of using the strict equality operator to check for null or undefined values is that it will not catch cases where a variable is "falsy" but not strictly equal to null or undefined. For example, if a variable is an empty string or the number 0, it will not be caught by this method.

3. Using the nullish coalescing operator (??)

The nullish coalescing operator (??) returns the value of its left-hand side operand if it is not null or undefined; otherwise, it returns the value of its right-hand side operand. Here's an example:

One potential drawback of using the nullish coalescing operator is that it is a relatively new addition to the language, so older browsers may not support it.

4. Using the optional chaining operator (?.)

The optional chaining operator (?.) allows you to access nested properties of an object without throwing an error if any of the properties in the chain are null or undefined. Here's an example:

One potential drawback of using the optional chaining operator is that it is also a relatively new addition to the language, so older browsers may not support it.

In general, each of these methods has its own strengths and weaknesses, so choose the method that best fits your use case. It's also worth noting that there are many other ways to check for undefined or null values in JavaScript, so don't be afraid to explore and experiment with different approaches.

19 Powerful Bash/ZSH/CLI tools and applications you must know

2023-02-24T14:44:00.008+01:00

If you're looking for a list of essential Bash/ZSH/CLI tools and applications then this post provides an overview of some of the most useful and powerful command-line tools and applications that can help you be more productive and efficient when working in a terminal environment. The tools and applications covered in the article include popular options like tmux, sed, grep, fzf, ssh and curl among others. Whether you're a beginner or an experienced user, these tools can help you streamline your workflow, automate repetitive tasks, and unlock new capabilities in your command-line environment.

Find following Bash/ZSH/CLI tools and applications:

1. tmux

With tmux, you can split your terminal window into multiple panes, each with its own shell prompt. For example, you can split your terminal into two panes by running the command tmux split-window. You can then switch between the panes using tmux select-pane and execute different commands in each pane.

2. grep

Let's say you have a log file named mylog.txt and you want to find all occurrences of the word "error". You can run the command grep "error" mylog.txt to search for the word "error" in the file and print out all lines that contain it.

3. sed

Let's say you have a file named mytext.txt and you want to replace all occurrences of the word "foo" with "bar". You can run the command sed 's/foo/bar/g' mytext.txt to replace all occurrences of "foo" with "bar" in the file.

4. awk

Let's say you have a file named data.csv containing sales data, and you want to find the total sales for each month. You can run the command awk -F ',' '{sum[$2]+=$3} END {for (month in sum) print month, sum[month]}' data.csv to group the data by month and calculate the total sales for each month.

5. rsync

Let's say you want to copy all files from your local machine to a remote machine using SSH. You can run the command rsync -avz -e ssh /path/to/local/files remoteuser@remotehost:/path/to/remote/files to transfer the files over the network securely.

6. ssh

Let's say you want to connect to a remote machine and execute a command on it. You can run the command ssh remoteuser@remotehost "ls -l" to log in to the remote machine and execute the ls -l command.

7. tar

Let's say you want to create a compressed archive of a directory named mydir. You can run the command tar -czf mydir.tar.gz mydir to create a compressed archive of the directory.

8. find

Let's say you want to find all files in your home directory that have been modified within the last 24 hours. You can run the command find ~ -type f -mtime -1 to search for all files in your home directory that have been modified within the last 24 hours.

9. htop

Let's say you want to monitor the CPU usage of a specific process. You can run the command htop to launch the htop process monitoring tool, and then use the arrow keys to select the process you want to monitor.

10. curl

With curl, you can transfer data to or from a server using various protocols, such as HTTP, FTP, and SCP. For example, you can download a file from a remote server by running the command curl -O http://example.com/myfile.txt. You can also send data to a server using the POST method by running the command curl -X POST -d "param1=value1¶m2=value2" http://example.com/myscript.php.

11. ncdu

With ncdu, you can analyze the disk usage of your system and find large files and directories that are taking up space. For example, you can run the command ncdu / to analyze the disk usage of the root directory and find the largest files and directories.

12. fzf

With fzf, you can search for files and directories using a fuzzy search algorithm, which allows you to quickly find files and directories even if you don't remember their exact names or locations. For example, you can search for a file named "myfile.txt" by running the command fzf -q myfile.txt.

13. tree

With tree, you can display the directory structure of a file system in a tree-like format, which allows you to visualize the hierarchy of files and directories. For example, you can run the command tree / to display the directory structure of the root directory.

14. exa

Exa is a modern replacement for the ls command, with more features and better output formatting. For example, you can run the command exa -l to display the file listing in a long format, which shows more information about each file, such as permissions, owner, and size.

15. ripgrep

Ripgrep is a faster alternative to grep, with support for recursive searching and highlighting. For example, you can search for the word "error" in all files in the current directory and its subdirectories by running the command rg "error" .

16. fd

Fd is a faster alternative to find, with an intuitive syntax and support for ignoring files and directories. For example, you can search for all files in the current directory and its subdirectories that have the extension ".txt" by running the command fd -e txt.

17. bat

Bat is a cat clone with syntax highlighting and paging support, which allows you to read and browse the contents of files more easily. For example, you can display the contents of a file named "myfile.txt" with syntax highlighting and paging support by running the command bat myfile.txt.

18. tldr

With tldr, you can quickly find practical examples of how to use various commands and tools, which can save you time and help you learn new things more easily. For example, you can find an example of how to use the grep command by running the command tldr grep.

19. z

Z is a shell plugin that allows you to quickly navigate to frequently used directories using partial or fuzzy matching. For example, you can navigate to a directory named "myproject" by running the command z myproj.

These are just a few more examples of how these Bash/ZSH/CLI tools and applications can be used. Each of them can be customized and extended using various plugins and configuration options, which allows you to tailor them to your specific needs and preferences.

Angular: 14 Important tips to optimizing your code performance

2023-02-23T17:14:00.002+01:00

Optimizing code performance in Angular can involve a range of techniques and strategies. Here are some tips for optimizing code performance in Angular:

1. Use OnPush change detection strategy: The OnPush change detection strategy helps reduce the number of change detection cycles, which can significantly improve the performance of your Angular application. By using OnPush, you can explicitly tell Angular to only perform change detection when the input properties to a component have changed.

2. Use lazy loading: Lazy loading is a technique that allows you to load parts of your Angular application on-demand, rather than loading everything at once. This can help reduce the initial load time of your application and improve its performance.

3. Use trackBy for ngFor loops: When rendering a list of items using ngFor, use trackBy to let Angular know which items have changed. This can help reduce the number of DOM updates that Angular needs to make.

4. Use Angular Universal: Angular Universal is a tool that allows you to render your Angular application on the server, which can help improve its performance by reducing the time it takes to load the initial page.

5. Minimize the use of ngIf: The ngIf directive can significantly impact the performance of your Angular application, especially when used in large lists. Try to minimize its use and consider using the ngSwitch directive instead.

6. Use production builds: When building your Angular application for production, use the --prod flag to enable production mode, which can help reduce the size of your application and improve its performance.

7. Use AOT compilation: Ahead-of-Time (AOT) compilation can help improve the performance of your Angular application by reducing the amount of code that needs to be downloaded and compiled by the browser.

8. Use pure pipes: When creating custom pipes in Angular, use pure pipes whenever possible. Pure pipes are only executed when their input data changes, which can help reduce the amount of processing required.

9. Use ChangeDetectionStrategy.OnPush with immutable data: When using OnPush, it's important to make sure that the data you're binding to your component is immutable. Immutable data means that the values cannot be changed after they are created. This can help Angular optimize change detection by comparing object references instead of deep object comparisons.

10. Use async pipe for Observable data: When binding to Observables in your template, use the async pipe instead of subscribing to the Observable in your component code. The async pipe can help reduce the amount of manual change detection you need to do, which can improve the performance of your application.

11. Use ngZone.runOutsideAngular() for long-running tasks: When running long-running tasks in your Angular application, use the ngZone.runOutsideAngular() method to execute the task outside of the Angular zone. This can help avoid triggering change detection cycles unnecessarily and improve the performance of your application.

12. Optimize image loading: Loading images can be a performance bottleneck in your Angular application. Consider optimizing image loading by using lazy loading, progressive loading, or by compressing images to reduce their file size.

13 Minimize HTTP requests: Minimizing the number of HTTP requests your application makes can significantly improve its performance. Consider combining and minifying your scripts and styles, and using a CDN to host static assets.

14. Use ng-content for reusable components: When creating reusable components in Angular, consider using the ng-content directive to allow for flexible and dynamic content projection. This can help reduce the amount of component duplication and improve the performance of your application.

By following these tips, you can significantly improve the performance of your Angular application and provide a better user experience for your customers. Remember that performance optimization is an iterative process, so keep monitoring and measuring the performance of your application, and continue to optimize it as necessary.

Flutter: How to create user registration widget

2023-02-19T14:13:00.006+01:00

Are you looking for creating user registration widget in Flutter then this post will help you to learn how to create user registration widget step by step.

Setting up a user registration widget in Flutter involves several steps. Please follow below steps:

Step 1: Create a new Flutter project

To create a new Flutter project, open Android Studio or Visual Studio Code and select "Create New Project" from the start screen. Follow the prompts to create a new Flutter project.

Step 2: Add the necessary dependencies

To create a user registration widget in Flutter, you'll need to add the following dependencies to your pubspec.yaml file:

The flutter_form_builder package provides a set of form fields and validators to help you build complex forms. The firebase_auth package provides an interface for user authentication with Firebase.

Step 3: Create a new StatefulWidget

In Flutter, a StatefulWidget is used when the state of a widget needs to change dynamically. In this case, we need to create a StatefulWidget to handle the user registration form.

To create a new StatefulWidget, create a new Dart file and add the following code:

In this code, we create a new StatefulWidget called UserRegistration and define the _UserRegistrationState class to handle the state of the widget. We also define the build method to return a blank container for now.

Step 4: Add a Form widget

To create a user registration form in Flutter, we need to use the Form widget. The Form widget provides a way to manage and validate user input.

Add the following code to the _UserRegistrationState class to create a basic form:

In this code, we create a new GlobalKey called _formKey to uniquely identify the form. We then add the Form widget to the body of the Scaffold widget and pass the _formKey as a parameter.

Step 5: Add form fields

Now that we have a basic form set up, we can add the form fields for the user to enter their registration information.

Add the following code to the Column widget inside the Form widget:

In this code, we add two TextFormField widgets for the user to enter their email and password. We also add a RaisedButton widget to submit the form data.

Step 6: Implement form validation and submission

To make sure the user enters valid information in the form fields and to submit the data to a backend server, we need to implement form validation and submission.

Add the following code to the onPressed callback of the RaisedButton widget:

In this code, we define a new method called _submitForm to handle form submission. We check if the form is valid using the currentState.validate() method, which returns true if all the validators in the form return null.

If the form is valid, we can submit the data to the server. For example, if you're using Firebase Authentication, you can use the following code to create a new user account:

In this code, we create a new instance of the FirebaseAuth class and call the createUserWithEmailAndPassword method to create a new user account. We pass in the email and password entered by the user using two TextEditingController objects, which we define earlier in the _UserRegistrationState class:

We also wrap the _submitForm method in an async function because the createUserWithEmailAndPassword method returns a Future object.

Step 7: Update the form fields

To update the form fields with the values entered by the user, we need to connect the TextFormField widgets to the TextEditingController objects.

Add the following code to the TextFormField widgets:

In this code, we add the controller parameter to the TextFormField widgets and pass in the _emailController and _passwordController objects respectively. This connects the TextFormField widgets to the controllers and allows us to access the values entered by the user.

Step 8: Run the app

To test the user registration widget, save all the changes you've made to the code and run the app using the flutter run command in the terminal. You should be able to enter your email and password into the form fields and submit the data to the server.

That's it! You've successfully created a user registration widget in Flutter with form validation and submission.

if you have like this post then please let me know your opinion by commenting below and don't forget to share this post to help other developers.

How to create Netflix app clone with ReactJS and Tailwind CSS

2023-02-17T15:36:00.009+01:00

Ready to take your ReactJS and Tailwind CSS skills to the next level? Follow my step-by-step tutorial and build your own Netflix app clone today. We'll guide you through the entire process, from setting up your development environment to implementing key features such as user authentication and video playback. By the end of this tutorial, you'll have a fully-functional streaming service that you can customize and deploy to your users. Whether you're building an app for personal use or for your business, this tutorial is a great way to improve your ReactJS and Tailwind CSS skills while creating a real-world application. So don't wait any longer - start building your Netflix app clone today.

Creating a Netflix clone using ReactJS and Tailwind CSS is a great way to practice your skills in both technologies. Here is a step-by-step guide on how to create a basic version of the Netflix clone:

1. Set up your development environment

Before you start, make sure you have Node.js installed on your system. You can download Node.js from the official website at https://nodejs.org.

Create a new project directory and run the following command to initialize a new React project:

This will create a new React project in the netflix-clone directory.

2. Install Tailwind CSS

Next, you'll need to install Tailwind CSS. You can do this by running the following command:

Once Tailwind CSS is installed, create a new configuration file called tailwind.config.js in the root directory of your project with the following content:

This configuration file tells Tailwind CSS to purge any unused styles, disables dark mode, and extends the default theme with additional styles.

3. Create the Netflix header

Create a new file called Header.js in the src directory with the following content:

This code defines the Header component, which displays the Netflix logo, a search input field, and a notification bell icon. The styles for this component are defined in a separate Header.css file.

4. Create the Netflix movie list

Create a new file called Movie.js in the src directory with the following content:

This code defines the Movie component, which displays a movie poster and title. The styles for this component are defined in a separate Movie.css file.

Create a new file called MovieList.js in the src directory with the following content:

This code defines the MovieList component, which displays a list of movies. The movies prop is an array of objects, each

5. Create a mock movie data file

Create a new file called mockMovieData.js in the src directory with the following content:

This file exports an array of movie objects with an id, title, and imageUrl for each movie. This mock data will be used to render the movie list in the Netflix clone.

6. Create the App component

Open the App.js file in the src directory and replace the contents with the following code:

This code defines the App component, which renders the Header and MovieList components. The movies prop is passed to the MovieList component, which uses the mock data to render the list of movies.

7. Add Tailwind CSS classes to the components

Open the Header.css file in the src directory and replace the contents with the following code:

8. Implement the MovieList component

Create a new file called MovieList.js in the src directory with the following content:

This code defines the MovieList component, which renders a grid of MovieCard components based on the movies prop passed to it. The container, flex, flex-wrap, my-1, px-1, w-full, sm:w-1/2, md:w-1/3, lg:my-4, lg:px-4, and lg:w-1/4 classes are used to implement the responsive grid layout using Tailwind CSS.

9. Implement the MovieCard component

Create a new file called Movie.js in the src directory with the following content:

This code defines the MovieCard component, which renders a single movie card with an image, a black overlay that appears on hover, and the movie title displayed at the bottom of the card. The group, relative, w-full, h-auto, absolute, inset-0, bg-black, opacity-0, group-hover:opacity-70, transition-opacity, duration-300, inset-x-0, bottom-0, p-4, text-white, and font-bold classes are used to implement the card design using Tailwind CSS.

10. Test the app

Run the app by executing the following command in the terminal:

This will launch the app in a new browser tab at http://localhost:3000/ (port could be different in your case). You should see the Netflix clone with a header and a grid of movie cards. You can test the app by hovering over a movie card, which should display the black overlay and the movie title.

11. Customize the app

You can customize the app by changing the mock movie data, adding more components, and styling the app using Tailwind CSS classes.

That's it! You have successfully created a Netflix clone using ReactJS and Tailwind CSS. This is just a basic example, but you can expand on this project and add more features to make it more advanced.

Flutter: How to create photo gallery widget in a easy way

2023-02-17T12:22:00.003+01:00

Want to add a stunning photo gallery to your Flutter app? Look no further. In this easy-to-follow tutorial, we'll guide you through the process of creating a photo gallery widget in Flutter. From choosing the right layout to integrating with popular photo services, we'll cover all the essential steps you need to know. Whether you're building an app for personal use or for your business, a photo gallery widget is a great way to showcase your images and impress your users. So why wait? Follow my tutorial and create your own photo gallery widget today

If you are a Flutter developer and looking for a tutorial to create photo gallery widget then this post is for you

To create a photo gallery widget in Flutter, you can use a combination of the GridView widget and the Image widget. Here's an example code snippet that you can use to create a simple photo gallery widget:

In this example, the PhotoGallery widget takes a list of image URLs as input. The widget then creates a GridView with two columns and a child aspect ratio of 1:1 (i.e., square tiles). The GridView also has some padding and spacing between the tiles.

For each image URL in the input list, the widget creates a GridTile with an Image widget as its child. The Image widget loads the image from the URL and fits it to cover the available space within the GridTile.

You can use the PhotoGallery widget in your app like this:

In this example, the PhotoGallery widget is used as the body of a Scaffold widget. The imageUrls list contains URLs of some random images from the Picsum website, but you can replace them with your own image URLs.

I hope this helps you create a photo gallery widget in Flutter!

If you are interested to know how to deploy Flutter app on AppStore or PlayStore then follow below post:

Flutter: How To Publish Your App On App Store And Play Store

Flutter: How to publish your app on App Store and Play Store

2023-02-10T22:42:00.006+01:00

Ready to share your Flutter app with the world? Learn how to publish it on the App Store and Play Store with this step-by-step guide. From creating your account to submitting your app for review, we'll walk you through the entire process. With our expert tips and insights, you'll be able to avoid common pitfalls and ensure that your app meets all necessary guidelines. Whether you're a beginner or an experienced developer, this guide will help you get your app in front of millions of users. So don't wait any longer - start publishing your Flutter app today!

If you are a Flutter developer the most interesting part probably you want to know is 'How to deploy or publish your flutter app on App store or Play store?'

Let's check the below steps one by one

Publish on App Store

To deploy a static website on Amazon S3, you can follow these steps:

1. Register as an Apple Developer: To publish your app on the App Store, you must be an Apple Developer. Register for an Apple Developer account and enroll in the Apple Developer Program.

2. Set up a development environment: Install the required software and tools, including Xcode, the iOS Simulator, and a Mac computer.

3. Prepare your app: Build and test your Flutter app to ensure that it meets the App Store's requirements.

4. Create an App Store Connect account: Create an App Store Connect account and set up your app's listing information, including its name, description, and pricing.

5. Create an App Store Distribution Provisioning profile: Create a distribution provisioning profile in the Apple Developer portal, which links your app to your App Store Connect account.

6. Build the App Store version of your app: Build the final version of your app using the distribution provisioning profile.

7. Upload the app to App Store Connect: Using Xcode, upload the built app to App Store Connect, where it will be reviewed by Apple.

8. Submit the app for review: Submit your app for review through the App Store Connect dashboard.

9. Publish the app: Once your app has been approved by Apple, you can publish it to the App Store.

Publish on Play Store

To deploy a Flutter app on the Google Play Store, you can follow these steps:

1. Sign up as a Google Play Developer: To publish your app on the Play Store, you must be a Google Play Developer. Sign up for a Google Play Developer account.

2. Create a release-ready build: Ensure that your Flutter app is ready for release by testing it thoroughly and building a release version of the app.

3. Set up a Google Play Console account: Create a Google Play Console account to manage your app's listing and distribution.

4. Upload the APK: Upload the release APK of your app to the Google Play Console.

5. Fill out the store listing: Provide information about your app, including its name, description, screenshots, and promotional graphics.

6. Set up pricing and distribution: Decide on a pricing model for your app, and configure its distribution settings, such as target countries and supported languages.

7. Test the app: Use the Google Play Console to test your app on various devices, including those in the Alpha and Beta channels.

8. Publish the app: Once you have thoroughly tested your app and made any necessary changes, you can publish it to the Play Store.

Note: These steps (both app store and play store) are just a high-level overview, the specifics of deploying a Flutter app on the Play Store can vary depending on your app's complexity and requirements.

7 Tips to take your reactive programming skills to the next level

2023-02-04T14:35:00.004+01:00

Reactive programming is very popular pattern of programming now a days. If you want learn reactive programming and want to improve your skills then read this post until at the end. Before reading further first let's understand what is reactive programming?

REACTIVE PROGRAMMING

Reactive programming is a programming paradigm that allows developers to build applications that respond to changes in data inputs. It is based on the idea of reactive streams, where a stream of data is processed and transformed over time to produce a final output.

In reactive programming, developers write code that can respond to events or changes in data as they occur, rather than writing code that must be executed in a specific order. This enables the application to react dynamically to changes in data, making it more flexible and scalable.

Reactive programming is often used in building user interfaces, where the UI must respond to changes in data inputs, such as user interactions or network events. It can also be used in other areas, such as data processing, event-driven systems, and stream processing.

Reactive programming is supported by many programming languages and frameworks, including JavaScript, Java, Python, and C#, among others. It can be used in combination with functional programming, object-oriented programming, and other programming paradigms.

Tips to improve reactive programming

Here are some tips to improve your reactive programming skills:

1. Start with the basics: Familiarize yourself with the concepts of reactive programming, including streams, observables, and reactive programming patterns.

2. Experiment with different libraries: Try using different reactive programming libraries, such as RxJS, ReactiveX, and Spring Reactor, to gain hands-on experience with the technology.

3. Build real-world applications: Put your skills to the test by building real-world applications that utilize reactive programming.

4. Practice, practice, practice: Continuously practice writing reactive code to improve your understanding of the paradigm and your ability to implement it effectively.

5. Read books and articles: Read books and articles written by experts in the field to gain a deeper understanding of reactive programming and stay up-to-date on best practices and new developments

6. Attend workshops and conferences: Attend workshops, conferences, and meetups focused on reactive programming to network with other developers and learn from experts in the field

7. Collaborate with others: Join a community of developers who are interested in reactive programming, such as a local Meetup group or an online forum. Collaborate with others on projects, share code, and discuss challenges to improve your skills and deepen your understanding of the paradigm.

Remember that becoming proficient in reactive programming requires time and practice, so be patient and keep at it. As you gain experience and confidence, you will be able to tackle more complex problems and develop more sophisticated applications.

Angular: 10 Tips to create lightweight architecture

2023-02-02T19:23:00.003+01:00

Is your Angular application slow and resource-intensive? It's time to optimize your architecture for better performance and efficiency. In this post, we'll share 10 essential tips for creating a more lightweight Angular architecture. From removing unnecessary dependencies to optimizing your code and improving user experience, we'll guide you through each step of the process. These tips will help you create an Angular application that loads faster, uses fewer resources, and provides a smoother experience for your users. Whether you're a beginner or an experienced Angular developer, these tips are essential for creating a high-performing application. So don't wait any longer - start improving your Angular architecture today with these 10 tips for lightweight development

Here are some tips for creating a lightweight architecture for your next Angular app:

1. Minimize the number of components: Use as few components as possible to keep your application simple and reduce the amount of code you need to maintain.

2. Keep components small: Keep each component small and focused, with a single responsibility.

3. Use Services for data sharing: Use services to share data between components instead of directly sharing data between components.

4. Use Observables: Use observables to manage asynchronous data, such as API calls, instead of Promises.

5. Use Lazy Loading: Use lazy loading to load modules only when they are needed, reducing the initial size of your application and improving startup time.

6. Use Modules: Group related functionality into modules, making it easier to manage and maintain your application.

7. Use the Router: Use the Angular Router to manage navigation between components, instead of manually manipulating the DOM.

8. Use Reactive Forms: Use reactive forms to manage forms instead of template-driven forms.

9. Avoid using global state management libraries: Instead, use the mechanisms provided by Angular, such as services and observables, to manage state in a clean and efficient manner.

10. Use the OnPush change detection strategy: This strategy only updates a component when an input property changes, improving performance by avoiding unnecessary updates.

By following these tips, you can create an Angular architecture that is lightweight, efficient, and easy to maintain.

Flutter: How to authenticate user with Auth0 (quick tutorial)

2023-02-01T17:08:00.001+01:00

Looking for a secure and reliable way to authenticate users in your Flutter app? Auth0 is a popular authentication and authorization platform that can help. In this tutorial, we'll show you how to integrate Auth0 with your Flutter app for seamless user authentication. You'll learn how to set up an Auth0 account, configure your app for authentication, and test your implementation. With Auth0, you can easily add popular authentication methods like email/password, social media logins, and multi-factor authentication to your app. This tutorial is perfect for developers of all skill levels who want to add secure and reliable authentication to their Flutter app.

To authenticate a user with Auth0 in a Flutter application, you can use the auth0_flutter package. This package provides an easy-to-use API for integrating Auth0 into your Flutter app.

Here's a high-level overview of the steps you would follow to authenticate a user:

1. Install the auth0_flutter package in your Flutter project.

2. Initialize the Auth0 client in your Flutter application. You'll need to provide your Auth0 domain and client ID.

3. Present the Auth0 login screen to the user. You can use the show method on the Auth0 instance to present the login screen.

Handle the authentication result. If the authentication was successful, you'll receive an AuthResult object that contains the user's profile information and tokens. You can use this information to authenticate API requests on behalf of the user.

Note that this is just a high-level overview, and you'll need to consider additional factors such as error handling and security when integrating Auth0 into your Flutter application. For more detailed information, I would recommend reading the official auth0_flutter package documentation.

Flutter: How to pass data between widgets

2023-01-31T19:47:00.003+01:00

Building complex and dynamic apps in Flutter often requires passing data between different widgets. If you're new to Flutter, you might be wondering how to accomplish this task. In this tutorial, I'll show you how to pass data between widgets in Flutter using a variety of methods, including stateful widgets, global state management, and using callback functions. You'll learn how to share data between different parts of your app, even when they're not directly related. Whether you're building a simple app or a complex one, understanding how to pass data between widgets is essential for creating a seamless user experience. This tutorial is perfect for developers of all levels who want to improve their Flutter skills and build better apps.

In Flutter, you can pass data between widgets using a combination of widget properties, callbacks and state management. Here are the three most common ways:

1. Pass data via widget properties: You can pass data from a parent widget to a child widget via properties. Here's an example:

2. Pass data via callbacks: You can pass a callback function from a parent widget to a child widget and then call it from the child widget to pass data back to the parent widget. Here's an example:

3. Pass data with state management: You can use a state management solution like Provider to store and pass data between widgets. Here's an example:

Angular: 5 Ways to manage a state of the component

2023-01-28T22:39:00.002+01:00

Managing component state is a critical aspect of building high-performance and scalable Angular apps. However, with multiple ways to manage component state, it can be challenging to determine which approach to use. In this post, I'll cover 5 different ways to manage the state of the component in Angular. From using @Input and @Output decorators to reactive forms and services, you'll learn about the pros and cons of each approach and when to use them. These tips will help you optimize performance, improve user experience, and build better apps. Whether you're a beginner or an experienced Angular developer, understanding how to manage component state is essential for building scalable and efficient apps.

In Angular, state management refers to the process of managing and manipulating the data or state of a component, service, or the entire application. This includes creating, retrieving, updating, and deleting data, as well as managing the flow of data between different parts of the application.

State management is important in Angular because it allows developers to create complex and dynamic web applications that can respond to user interactions and update the view in real-time. Without proper state management, an Angular application can become difficult to maintain and reason about, especially as the application grows in complexity.

There are several approaches to state management in Angular, including using services, input and output decorators, ngModel directive, Reactive Forms, and ngrx library. Each approach has its own advantages and disadvantages, and the choice of approach will depend on the specific requirements of the application.

It's essential to choose the right state management strategy for your application and use it consistently throughout the application. This can help to ensure that your application is maintainable, testable, and scalable, and that it provides a good user experience.

There are several ways to manage the state of a component in Angular, here are the following you may use:

Using a Service

You can create a service that stores the state and inject it into the component. The component can then use the service to retrieve and update the state. This is useful when you need to share the state between multiple components.

Using the @Input and @Output decorators

You can use the @Input decorator to pass data from a parent component to a child component and the @Output decorator to emit an event when the state changes. This is useful when you need to pass data down the component tree or when you need to propagate an event up the component tree.

Using the ngModel directive

You can use the ngModel directive to two-way bind a property of the component to an input element. This is useful when you need to create a form that updates the component's state.

Using the Reactive Forms

You can use the Reactive Forms module to create a form and manage its state. This is useful when you need to create complex forms with validation and custom logic.

Using the @State decorator and the store from ngrx library

You can use ngrx library which is inspired by the redux pattern, to manage the state of the application. You can create a store and actions to update the state and selectors to retrieve the state.

You may choose the approach that best fits your use case, it depends on the complexity of the state, the number of components that need access to the state, and the desired level of abstraction.

Please note that this is a high level overview and you should consider details like error handling, validation, etc.

You may also want to check the official documentation of Angular for more information.

How to implement ChatGPT in Angular app

2023-01-25T19:56:00.002+01:00

Adding a chatbot to your Angular app can improve user engagement and streamline user support. But how do you integrate ChatGPT into your Angular app? In this tutorial, I'll walk you through the process of integrating ChatGPT into your Angular app step-by-step. You'll learn how to set up a ChatGPT account, create a chatbot, and integrate it into your Angular app. With ChatGPT, you can create custom chatbots that can answer frequently asked questions, provide personalized recommendations, and more. This tutorial is perfect for developers of all levels who want to improve user engagement and add a powerful tool to their Angular app.

Introduction: ChatGPT

ChatGPT (Conversational Generative Pre-training Transformer) is a large language model developed by OpenAI that is trained to generate human-like text. It is based on the GPT (Generative Pre-training Transformer) architecture, which is a transformer-based neural network that has been pre-trained on a large corpus of text data. The model has been trained on a diverse range of internet text, including articles, books, and websites, in order to learn the patterns and structures of human language.

ChatGPT is trained to generate text in a conversational context, it's capable of understanding context and responding to prompts in a way that mimics human conversation. It can be used for a variety of natural language processing tasks, such as language translation, text summarization, and question answering, as well as for generating creative text, like poetry or song lyrics. It can be fine-tuned on a specific task and/or domain by training it on a smaller dataset.

ChatGPT can be accessed via the OpenAI API and integrated into a wide range of applications, including chatbots, virtual assistants, and language generation systems.

There are a few steps you can take to implement ChatGPT in an Angular app:

First, you'll need to install the openai npm package, which allows you to access the OpenAI API.
Next, you'll need to create an API key for your app on the OpenAI website, which you can use to authenticate your requests to the API.
In your Angular code, you can use the openai package to make requests to the API and retrieve responses from ChatGPT.
Finally, you can use Angular's template binding and event handling features to integrate the ChatGPT responses into your app's UI, such as displaying the responses in a chat window.

Here is an example of how to make a request to the API in Angular:

Note that this is a simple example and you will likely need to modify it to fit your specific use case. Also, you may need to install additional dependencies such as @angular/forms and @angular/common to make the example work.

Angular: How to check disabled form control(s)

2023-01-25T19:24:00.004+01:00

Checking disabled form controls in Angular is a common requirement when building forms. However, it can be tricky to determine whether a form control is disabled or not, especially if you have a complex form with many controls.

In Angular, you can check if a form control is disabled by using the disabled property of the form control. The disabled property is a boolean value that will be true if the form control is disabled, and false if it is not.

Here is an example of how you can check if a form control is disabled in an Angular template:

And in the component you can disable the form control by using the disable() method

Alternatively, you can also use the status property of the form control to check if the form control is disabled or not. The status property of the form control will be 'DISABLED' if the form control is disabled, and 'VALID' or 'INVALID' if it is not.

You can also use the ngClass directive to apply a CSS class when the form control is disabled

Please note that you should use form.get() only if you are using the FormGroup API and formControlName directive, if you are using FormControl API you should use formControl.disabled to check the status of the form control.

4 RxJS Operators you should know to get last emitted value from observable

2023-01-21T16:06:00.004+01:00

Getting the last emitted value from an observable is a common requirement when working with reactive programming in JavaScript. However, it can be challenging to determine which RxJS operators to use to achieve this goal. In this tutorial, I'll cover four essential RxJS operators that you should know to get the last emitted value from an observable. This tutorial is perfect for developers of all levels who want to improve their reactive programming skills and become more efficient at handling asynchronous data streams.

In RxJS, you can use the last() operator to get the last emitted value from an observable. The last() operator emits only the last value from the source observable that meets a specified condition.

last() operator

For example, to get the last emitted value from an observable source$ you can use the following code:

If you want to get the last emitted value that meet some condition:

takeLast(1) operator

You can also use the takeLast(1) operator to get the last emitted value from an observable. This operator emits the last n values from the source observable.

reduce() operator

Alternatively you can use reduce operator, to get the last emitted value from an observable by reducing the emitted values to a single value:

Example:

BehaviorSubject

If you want to get the last value emitted while the observable is still active, you can use the BehaviorSubject which will always hold the last emitted value and will emit that value to new subscribers.

Example:

Keep in mind that these operators will only return the last emitted value at the time the subscription is made, if you want to keep track of the last emitted value each time the observable emits a new value you need to use a BehaviorSubject or ReplaySubject which stores the last emitted value and emits it to new subscribers.

If you have like this post then please let me know your opinion by commenting below and sharing this post with other developers.

10 Cool and Free Resources to learn CSS grid quickly in 2021

2021-02-19T16:01:00.000+01:00

Hello Developers, If you heard about CSS grid earlier but haven't get chance to learn it or consfused where to start then in this post I am going to help you. I would give you some basic understanding of CSS grid and let you know some cool resources where you can learn in detail very easily.

What is CSS grid

CSS grid is a combination styles which lets you to create complex responsive web design layouts more easily and consistently all across browsers in very less line of codes. Often developers gets confused between CSS grid and flexbox and don't know which one should use. Well if you know the difference it is to choose.

Difference between CSS grid and flexbox

👉 CSS grid is designed for two-dimensional layout - rows and columns at the same time.

👉 CSS flexbox is designed for layout in one dimension - either a row or a column.

Which one you should use?

👉 When you need to control the layout by row and column then grid is useful.

👉 When you need to control the layout by row or column only then flexbox is useful.

I hope you have an good understanding about CSS grid now. So here are following cool and awesome resource which are quite helpful to learn CSS grid:

CSS Grid Layout by MDN

Mozilla Developers Network is a primary resource to learn anything about frontend development. It has bunch of meaningful posts to learn CSS grid. Here you'll learn basic concepts of grid layout with examples and detailed explanations.

A complete CSS Grid guide by CSS-Tricks

There is a complete CSS grid guide published on CSS-Tricks by Chris House. This guide contains everything you want to know from introduction to advance use of CSS grid. The explanations of the topics has broken into small chunks so could understand slowly and easily. Once you learn everything then you may follow this post about CSS grid responsive layout without media queries.

Learn CSS Grid

CSS Grid is a powerful tool that allows for two-dimensional layouts to be created on the web. This guide was created as a resource to help you better understand and learn Grid, and was organized in a way I thought made the most sense when learning it.

Grid Garden

Grid Garden is a game for learning CSS grid layout. This is a great resource where you write CSS code to grow your carrot garden! Water only the areas that have carrots by using the grid-column-start property. You may follow this github repo of Grid Garden to explore more.

CSS Grid Visual Cheat Sheet by Malven Co

This is a visual cheat sheet for CSS Grid. Simple and easy copy to clipboard functionality lets you copy the grid styles and use it immidiately in your CSS this way you may experiment various features in your own CSS.

CSS Grid Free Video Course by Wes Bos

This free video course sponsored by Mozilla Firefox. In this free video course you'll have an access of 25 videos plus all resource files used in video tutorial. It is about 4 hours long focused on fundamentals to real world usage.

CSS Grid may seem a bit daunting with new syntax and layout ideas, but in this video course you'll see it's fairly simple and can be broken down into a handful of powerful concepts that when used together will blow your mind and change the way you create layouts for the web forever.

Grid by Example

This is an completely open source project by Rachel Andrew. Grid by Example like title tells everything about this project. Here you'll learn CSS Grid by taking the example of every topic you want to learn. This site is a collection of examples, video and other information to help you learn CSS Grid Layout.

MASTER CSS GRID

Video tutorials and resources to help you master CSS Grid Layout. It has free video tutorials covering various topics like Placing items on the grid, Aligning items on the grid, Auto flow columns and rows etc.

Awesome CSS Grid github repo

A manually curated list of CSS Grid resources. This github repo has all useful stuff about CSS grid like Documentation, Articles, Tools and Slides etc.

CSS Grid Layout by W3Schools

W3School has well detailed documentation about CSS grid where you can play with examples.

I hope you have liked this post and if you think this post has helped then let me know your opinion and don't forget to share this post with other developers.

See you in the next blog post and keeping rocking!