Angular VS. Angular JS
If we compare the performance on Angular with AngularJS then we have better reasons to use Angular. Angular is at least five times faster than AngularJS due to a much better algorithm for data binding and a component-based architecture. The components of an Angular application are quite independent and self-sufficient, which makes them reusable and test friendly.
Angular used Typescript and Angular JS uses JavaScript.
The main advantage of Typescript over JavaScript is that Typescript is a superset of JavaScript. So Typescript designed for the development of a large program that Trans compile to JavaScript. But Typescript may be used to develop a JavaScript application for both client-side and server-side.