AngularJS vs Angular2 vs Angular4 : What is the difference?

AngularJS vs Angular2 vs Angular4 : What is the difference?
What is Angular JS?
AngularJS was created by Misko Heavery.He has built a framework to handle the downfalls of HTML and also taking ideas and best practices of the libraries which were never done earlier.
The principal form of the structure known as AngularJS was propelled in the year 2009.It established the framework of the present-day front-end application advancement.
Angular JS was a standout amongst other single-page application improvement solution.Gradually,it wide reception and become well known.
Features of Angular JS
*A JavaScript MVW Framework
*Extends HTML support by adding tags,attributes, and expressions.
*Allows easy event Handling
*Supports for Data Binding.
*Built-In Template Engine and Routing
*Form Validations and Animations
*Dependencies Injection
What is Angular 2?
After,releasing Angular JS,Angular team released Angular 2 which is complete rewrite of its original Angular 1 or AngularJS.Angular 2 version is built around the concept of the component.It was rewritten from scratch by the Angular team using Typescript.It offers better performance to web developers.There are many new features along with other improvements and tweaks.
Some Important Featutres of Angular 2 are :
*Modern,faster, and highly scalable framework
*Equally useful framework for web,mobile, and desktop apps
*Web components based architecture
*Supports Hierarchical Dependency Injection

Why not Angular 3?
Angular 2 has been a single repository.Each package downloadable with the @angular/package-name convention.For example @angular/HTTP,@angular/router.
All bundle names were doled out adaptation 2,but switch bundle by mixed up was given variant 3.
Therefore,the improvement group avoided Angular Version 3 and straightforwardly named it rendition 4 to keep up similarity with Angular Router's variant.
What is Angular 4?
Precise 4 is not normal for Angular 2 (which is finished modified form of Angular)
1). Heere are in actuality just couple of minor changes and new highlights included it.Angular 4 backings TypeScript,which accumulates to JavaScript and showcases the equivalent in the program.
Some other features of Angular 4 are :
* Decrease the size of the created packaged code up to 60%.
*Animation moved out to a separated package @angular/animations
*Supports for if/else statement
Supports for email validator.
What is Angular 5?
Angular 5 does not bring any significant change from Angular 4.However,lots of new features and many new improvements are done in this version.
Features of Angular 5
*Make AOT the default
*Easier to build progressive web apps
*Type checking in templates
*Supports for Internationalized Number,Date,and Currency Pipes.
*An update to Httpclient
*Zone speed improvements
*New Router Lifecycle Events

History of Angular Versions
*Angular version 1.0 which is known as AngularJS released in 2010 by Google.
*Angular version 2.0 was released in September 2016
*Angular 4.0 was released in March 2017.
*Angular 5.0 was released in Nov 2017.
Let see Angular versions history in detail :
History of Angular 1
Angular 1 which was also referred as AngularJS is a Javascript open-source framework.It was designed especially for single-page web apps which is fully owned by Google.This was the first Angular version launched in the year 2010.
History of Angular 2
Angular 2 is a completely assembled and finished improve rendition from Angular 1.It is good with versatile devices.Moreover,Angular 2 gives you a choice to pick more dialects where you can pick your language like ES5,ES^, or TypeScript to compose the codes of Angular 2.
History of Angular 4
As examined earlier,Angular 3 was not discharged by the Angular team.Angular 4 was discharged on March 6,2017,which is good with the greater part of the applications.However,there isn't any real changes in Angular 4 from Angular 2,and it offers better bug fixed,and cautions contrast with Angular 2.
History of Angular 5
Angular 5 was discharged in November 2017.In this Angular version,there are some greatest changes has additionally been made with past Angular.In this version,there is a Build Optimizer that made with the Angular CLI by which enables you to apply construct streamlining agent by default.Besides this,there is an Angular Universal State Transfer likewise given that supports API and DOM.