Comparitive study of AngularJS, KnockoutJS and ReactJS

Here is a high level comparison of AngularJS, KnockoutJS and ReactJS. Going through this comparison might just help you in deciding which framework/library to choose for your project.

AngularJS

• AngularJS is a framework but it is much more lightweight than a typical framework.
• AngularJS is 100% JavaScript, 100% client-side and compatible with both desktop and mobile browsers.
• Angular JS can use jQuery. It also have its own implementation of the subset of jQuery that is called jQLite.
• It supports routing.
• Angularjs is complete javascript framework which in addition to data binding supports routing, MVC, web services, two-way data binding, dependency injection, DOM manipulation, animation (with plugin), etc.
• Browser support : According to official documentation they mainly test on the latest versions of Chrome, Firefox, Safari, and Safari for iOs, as well as Internet Explorer versions 9-11.
• Extensible :- in AngularJS we can create custom directives to extend AngularJS existing functionalities
• It is free and open source
• No dependencies

KnockoutJS

• Knockout is a pure JavaScript library which works with any server or client-side technology.
• We can use jQuery along with Knockout, and indeed that’s often useful if we want something like animated transitions.
• Knockout doesn't have routing
• Mainly used for data binding between UI elements and JavaScript objects.
• Knockout is tested on the following browsers: Mozilla Firefox (versions 3.5 - current), Google Chrome (current), Microsoft Edge (current), Microsoft Internet Explorer (versions 6 - 11), Apple Safari for Mac OS (current), Apple Safari for iOS (versions 6 - 8), Opera (current version). See the link for more details.
• Knockout is also flexible to integrate with other libraries and technologies.
• Extensible :- we can implement custom behaviors as new declarative bindings for easy reuse.
• It is free and open source
• No dependencies

ReactJS

• ReactJS is a JavaScript library

• It supports virtual DOM.
• There are ways to use jQuery with ReactJS but it is not recommended
• Requires another library “React-Router” for routing.
• It is just a library for rendering views and providing binding for view components.
• Browser support :  React JS supports all major browser including IE >=9.
• It makes use of JSX( a Javascript XML syntax transform). This lets you write XML or HTML type tags in your Javascript.
• In AngularJS and Knockout we kind of embed angular or Knockout code in between HTML markup that code then manipulates or modifies the HTML, but in React we generate the HTML markup from the React JS code.
• It is free and open source
• It has no dependencies of its own but you can extend its functionality by including “JSX” and libraries like “React-Router”