Angular 4

First of all, I’m going to tell you what kind of thing you are going to read. As an internet user, you must have visited lot of responsive and dynamic web applications. Wait, Have you ever notice, some applications only reload the required section and remain other sections as it is rather than reload whole page. All you have experienced with Gmail, PayPal etc. These applications are called Single Page Application (SPA).They are developed by Angular. SPAs heavily use AJAX- a way to communicate with back-end servers without doing a full page refresh to get data loaded into application.

Angular is a JavaScript based open source framework for building client-side web applications. JavaScript process with dynamic content. Based on JavaScript , many custom libraries can be create and jQuery is one which is fast small and feature-rich for DOM manipulation, event handling, animation and  Ajax much simpler with an easy-to-use API. But jQuery doesn’t have any proper structure and developer have the freedom for build the project structure. When considering a large project it may easily fall into trap of “spaghetti code” which leads to confusion of code maintainability. Angular provides a structured environment to build SPAs.

	Angular	jQuery
DOM Manipulation	yes	yes
RESTful API	yes	No
Animation Support	Yes	Yes
Deep Linking Routing	Yes	No
Form Validation	yes	No
2 Way Data Binding	yes	No
AJAX/JSON	yes	yes

Two-way binding is when properties in the model get updated, so does the UI and When UI elements get updated, the changes get propagated back to the model. Don’t get confuse now you may experience it while coding. Angular community has decided to consider any version of Angular (Angular 2 onwards) as just Angular and Angular 1 as AngularJS. Angular is normally called TypeScript based open source client side web application by Google and community. TypeScript is a super set of Java Script. Angular is completely rewrite of AngularJS. Now I guess you have a depiction of Angular origination.

Reference: https://www.edureka.co/blog/angular-tutorial/