One of the most significant benefits to this approach is that AngularJS isn’t dependent upon a particular back end. It only deals with the API interface, so AngularJS works as long as the API handles its data requests properly. Developers can therefore change an application’s back end easily without modifying the front end. This capability is especially helpful when developing a mobile application for an existing web site.
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Facebook released ReactJS in 2013 and is already providing AngularJS with tough competition, although ReactJS is still more popular. ReactJS powers the user interface for both Facebook and Instagram, so it can build large, dynamic applications. It’s also the View component of the model-view-controller (MVC) software architecture.
ReactJS allows the programmer to develop a virtual Document Object Module (DOM), allowing the client and server sides to communicate more quickly. This capability is most useful for applications that require a powerful MVC View component without elaborate Model and Controller components. ReactJS is also beneficial for applications that need a View component for another front-end framework. Additional advantages of ReactJS include the resolution of some serious search engine optimization (SEO) problems.
Ember.js is an MVC framework that automatically updates a web page when its data changes. It also includes an engine that supports representational state transfer (RESTful) API web services. Ember.js is designed to create complex web applications without requiring developers to spend unnecessary time learning and implementing it. It resembles Rails, primarily because Yehuda Katz was a core member of both development teams.
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Express.js is open-source software distributed under the MIT License, which generally means that it’s free to develop and use. However, StrongLoop acquired the rights to manage the Express.js project in June 2014. IBM acquired StrongLoop in 2015 and assigned the management of Express.js to the Node.js Foundation in 2016.
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