How to Upgrade Web Applications from Angular 2 to Angular 4?

Angular 2 apps will work using Angular 4 without changing anything. Angular 4 offers lots-of enhancements i.e.

1. Angular 4 is smaller than Angular 2

2. Angular 4 is faster than Angular 2

3. Angular 4 has enhanced *ngFor and *ngIf

4. Angular 4 has more meaningful errors

5. Overriding a template in Angular v4

6. Angular 4 has great Animations

Angular 4 Installation Process on Windows -

npm install @angular/common@latest @angular/compiler@latest @angular/compiler-cli@latest @angular/core@latest @angular/forms@latest @angular/http@latest @angular/platform-browser@latest @angular/platform-browser-dynamic@latest @angular/platform-server@latest @angular/router@latest @angular/animations@latest typescript@latest --save

Angular 4 Installation Process on Linux/Mac-

npm install @angular/{common,compiler,compiler-cli,core,forms,http,platform-browser,platform-browser-dynamic,platform-server,router,animations}@latest typescript@latest –save

Stayed Informed - Angular 2 vs. Angular 4

If you faced any error in Linux application update from angular 2 to angular 4

1. Delete your node modules

2. Update your dependency In Linux Environment and execute the command

Angular has Update Guide to upgrade web Angular 2(+) to 4(+) for Basic, Medium or Advance Apps.

Angular Update Guide Book - https://angular-update-guide.firebaseapp.com/

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By Anil Singh | Rating of this article (*****)

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