Why Angular 1 or Angular 2? There is no official right answer to this question. Let’s see the difference between Angular1 and Angular2
1. Architecture
Angular1 vs Angular2
Angularjs 2 entirely rewritten compare to 1 and it’s a significant structural change. There are few upgrade possibilities of 1 to 2 and most of the cases only suitable possible options are to rewrite the application in Angularjs 2.TypeScript is an extension of ECMAScript, in fact:
TypeScript = ES6 + Types + Annotations
TypeScript means the new Angular is also likely to be popular for .NET developers. A TypeScript is a form of JavaScript which knows types and classes and can be compiled to JavaScript. It is an open-source. TypeScript includes several aspects of object orientation such as inheritance and interfaces. Angular2 uses TypeScript, the functionality of TypeScript and its libraries can be used. Angular is just a framework that couples different features. Other libraries can easily be used. Because it has a connector in TypeScript you can use the MongoDB interface.
Style sheets give your app an upgraded look. In Angular 1, you can specify the style sheets for your entire app. As the app grows over time to time, the styles for the many pages merge, which causes unexpected results sometimes. In Angular 2, you can still define style sheets for your entire app.
Angularjs 2 entirely rewritten compare to 1 and it’s a significant structural change. There are few upgrade possibilities of 1 to 2 and most of the cases only suitable possible options are to rewrite the application in Angularjs 2.
2. Javascript vs TypeScript
Angular1 vs Angular2
Angular1 application build on Javascript and Angular 2 comes with Typescripts which is a superset of Javascript that helps developers to write more structured code. Angular enabled you to see information changed in JavaScript about consequently the UI. Language choices as ES5, ES6, and Dart are support by both Angular 1 and Angular 2. In Angular 2 you can write in TypeScript whereas Angular 1 does not support TypeScript. Typescript is an additional step in Angular 2 that is a great way of scripting JavaScript.
What is TypeScript
TypeScript = ES6 + Types + Annotations
TypeScript means the new Angular is also likely to be popular for .NET developers. A TypeScript is a form of JavaScript which knows types and classes and can be compiled to JavaScript. It is an open-source. TypeScript includes several aspects of object orientation such as inheritance and interfaces. Angular2 uses TypeScript, the functionality of TypeScript and its libraries can be used. Angular is just a framework that couples different features. Other libraries can easily be used. Because it has a connector in TypeScript you can use the MongoDB interface.