Two-way binding is the most user-friendly innovative feature of Angular.js that allows real-time updating of a website from different devices. Any view is changed with addition or alteration is rendered to the interface simultaneously on the mobile app and website.
Angular.js by far has the biggest active community support worldwide. There is the great reserve of online contents and guidance available over the web. Further, the framework offers a very low learning curve and is widely adopted by the engineers.
React.js is great for rendering complex user interfaces while not compromising on performance. The framework is also widely acclaimed for bringing reusable elements. This allows developers to reuse the components across various apps.
Additionally, the React.js framework offers Material-UI design taking inspiration from Google’s material design.
Just as Angular.js, Ember.js also offers two-way data binding. This allows updating changes in a real time when accessed from two devices. The framework is also a very proactive framework with robust active community support and repeated developments.
Server side rendering like React.js is one of the key strengths of Ember.js. Moreover, the framework fits the bill of most developers by offering the best of both worlds, two-way data binding of Angular.js and server-side rendering of React.js.
The most commendable feature of the framework is the freedom to use selective modules for particular web development needs.
Backbone.js is a great framework for both frontend and backend operations in web interfaces. This is the reason social networking services like Reddit use the Backbone.js framework for many of their single-page apps.
The Backbone.js framework is known for models with elements like key-value, views and number of modules bundled together. This saves you from downloading any separate package.
The entire source code of Backbone.js is made available on GitHub, which allows modifying the framework as per requirement.
People who just want to build a single page website or web app rapidly with a relatively new but dynamic framework may find Backbone.js just the ideal one.
Mercury.js is continued to rise in popularity ever since its release just two years ago. At present, it has a robust community of developers who prefer using it for their web development projects. The framework is open source and is truly dynamic in nature to handle complex development jobs.
The features of Mercury.js are mostly similar to another powerful framework listed here, namely, React.js. Some of the common features are virtual DOM, state management, and render methods.
Mercury.js works great with most other libraries and offers a streamlined markup API. This will help to build clean interface without any scope of mixing tags.