Features of Angular 8

Features of Angular 8:

• Angular 8 supports TypeScript 3.4
• Angular 8 supports Web Workers
• The new compiler for Angular 8 is Ivy Rendering Engine
• Angular 8 provides dynamic imports for lazy-loaded modules.
• Improvement of ngUpgrade

TypeScript 3.4

Angular 8 supports TypeScript 3.4 and it is required to run your Angular 8 project.

Web workers class

JavaScript is single threaded, so it is common for more critical tasks like data calls to take place asynchronously. Web Workers facilitates you to run the CPU intensive computations in the background thread, freeing the main thread to update the user interface.

Web workers can also be helpful, if your application is unresponsive while processing data.

If you want to outsource such a calculation to a background, we must first create the web worker using the Angular CLI.

ng generate worker n-queens  

More about Ivy and Bazel

Ivy is the new rendering engine and Bazel is the new build system. Both are ready for proper use with Angular 8. The preview of these two should be available shortly. Ivy is a new compiler/runtime of Angular and Angular 8 is a first release to offer a switch to opt-in into Ivy officially.

Ivy is supposed to be a by default rendering engine in Angular version 9.

Bazel provides one of the newest features of Angular 8 as a possibility to build your CLI application more quickly.

The main advantages of Bazel are:

• The incremental build and tests.
• It provides a chance to make your backends and frontends with a same tool.
• It has a possibility to have remote builds and cache on the build farm.

Dynamic imports for lazy-loaded modules

Angular 8 facilitates you to use standard dynamic import syntax instead of a custom string for lazy-loaded modules.

It means lazy-loaded import that looked like this:

{ path: '/student', loadChildren: './student/student.module#StudentModule' }  

Will be looked like this:

{ path: `/student`, loadChildren: () => import(`./student/student.module`).then(s => s.StudentModule) }  

Improved Angular CLI Workflow

The Angular CLI is continuously improving. Now, the ng build, ng test and ng run are equipped by 3rd-party libraries and tool. For example, AngularFire already makes use of these new capabilities with a deploy command.