🔥 ऐंगुलर 18 नए फीचर्स के साथ यहाँ है | ऐंगुलर 18 में नए फीचर्स हिंदी में

Angular 18 has recently been released with several new and exciting features that enhance the development experience for developers. In this tutorial, we will explore some of the key new features introduced in Angular 18, and discuss how you can leverage them in your projects. So, let’s jump in!

1. Differential Loading
   One of the most significant new features in Angular 18 is the introduction of differential loading. This feature allows developers to create two separate bundles for modern and legacy browsers. When a user visits a website using a modern browser, they will be served the modern bundle, which is much smaller and more optimized. On the other hand, users with legacy browsers will receive the legacy bundle, ensuring compatibility without sacrificing performance.

To enable differential loading in your Angular 18 project, you can add the following configuration to your angular.json file:

"build": {
  "configurations": {
    "production": {
      "outputHashing": "all",
      "browserTarget": "your-app-name:build",
      "commonChunk": {
        "length": 2
      },
      "differentialLoading": {
        "production": true
      }
    }
  }
}

1. Opt-in Ivy Renderer
   Angular 18 also introduces an opt-in Ivy renderer, which offers improved performance and smaller bundle sizes compared to the older View Engine renderer. Ivy is the new rendering engine in Angular that provides better tree shaking, faster build times, and improved debugging capabilities.

To opt-in to Ivy in Angular 18, you can add the following configuration to your tsconfig.app.json file:

"angularCompilerOptions": {
  "enableIvy": true
}

By enabling Ivy, you can take advantage of the latest features and optimizations that Angular has to offer, ensuring a more efficient development process.

1. TypeScript 4.4 Support
   Angular 18 now supports TypeScript 4.4, the latest version of the popular programming language. TypeScript 4.4 comes with several new features and improvements, such as control flow analysis for destructured assignments, improved error messages, and improved JSX support.

To update your Angular project to use TypeScript 4.4, you can simply update the TypeScript version in your package.json file:

"devDependencies": {
  "typescript": "^4.4.3"
}

By keeping your project up-to-date with the latest TypeScript version, you can take advantage of improved type checking and better editor support, leading to a more robust and efficient codebase.

1. Component Harnesses
   Angular 18 introduces component harnesses, which provide a more reliable and efficient way to interact with Angular components in tests. Component harnesses allow you to query components and interact with them in a consistent and reliable manner, improving the stability and maintainability of your tests.

To use component harnesses in Angular 18, you can import the ComponentHarness class from @angular/cdk/testing and create a harness for your component:

import { ComponentHarness } from '@angular/cdk/testing';

class YourComponentHarness extends ComponentHarness {
  static hostSelector = 'your-component-selector';
}

By using component harnesses in your tests, you can ensure that your tests are more resilient to changes in your component’s implementation, making them easier to maintain and more reliable.

Conclusion
In this tutorial, we have explored some of the key new features introduced in Angular 18 and discussed how you can leverage them in your projects. From the introduction of differential loading and opt-in Ivy renderer to the support for TypeScript 4.4 and component harnesses, Angular 18 offers a range of improvements that can enhance your development experience. By incorporating these new features into your Angular projects, you can take advantage of the latest advancements in the framework and build more efficient and reliable applications. Happy coding!