The Top 6 JavaScript frameworks for 2021

1.React.js

React (also known as React. js or ReactJS) is a JavaScript library for building user interfaces.It is maintained by Facebook and a community of individual developers and companies. React can be used as a base in the development of single-page or mobile applications. React has become more and more popular over the last few years. Something that comes with that is the release of more and more libraries for it, bringing us great new possibilities but most importantly making things easier.This magical count change is because of Reactjs. React is a declarative, efficient, and flexible JavaScript library for building user interfaces. It’s ‘V’ in MVC.

2.Vue.js

Vue. js is a progressive JavaScript framework that allows you to create compelling user interfaces efficiently and easily. The core development layer focuses on the general experience of your application, yet it leaves you free to import or integrate existing libraries and tools.Vue (pronounced /vjuː/, like view) is a progressive framework for building user interfaces. Unlike other monolithic frameworks, Vue is designed from the ground up to be incrementally adoptable. The core library is focused on the view layer only, and is easy to pick up and integrate with other libraries or existing projects. On the other hand, Vue is also perfectly capable of powering sophisticated Single-Page Applications when used in combination with modern tooling and supporting libraries.

3. Svelet.Js

Svelte is a free and open-source JavaScript framework written by Rich Harris. Svelte applications do not include framework references. Instead, building a Svelte applications generates code to manipulate the DOM, which may give better client run-time performance.Svelte compiles your code to tiny, framework-less vanilla JS — your app starts … npx degit sveltejs/template my-svelte-project # or download and extract this.velte is a radical new approach to building user interfaces. Whereas traditional frameworks like React and Vue do the bulk of their work in the browser, Svelte shifts that work into a compile step that happens when you build your app.

Instead of using techniques like virtual DOM diffing, Svelte writes code that surgically updates the DOM when the state of your app changes.

4. Next.Js

Next.Js is a JavaScript written an open-source framework. It is —

1. Built for developing highly customizable web-based applications.

2. It’s a zero-configuration, single-command toolchain for React apps.

Some of its best features :

1. Automatic code splitting, filesystem-based routing, hot code reloading, and universal rendering.
2. Nuxt.js is a free and open source web application framework based on Vue.js, Node.js, Webpack and Babel.js. The framework is advertised as a “meta-framework for universal applications”

5. Angular.Js

AngularJS is a JavaScript-based open-source front-end web framework mainly maintained by Google and by a community of individuals and corporations to address many of the challenges encountered in developing single-page applications.AngularJS is a structural framework for dynamic web apps. It lets you use HTML as your template language and lets you extend HTML’s syntax to express your application’s components clearly and succinctly. AngularJS’s data binding and dependency injection eliminate much of the code you would otherwise have to write.

AngularJS is what HTML would have been, had it been designed for applications. HTML is a great declarative language for static documents. It does not contain much in the way of creating applications, and as a result building web applications is an exercise in what do I have to do to trick the browser into doing what I want?

The impedance mismatch between dynamic applications and static documents is often solved with:

• a library — a collection of functions which are useful when writing web apps. Your code is in charge and it calls into the library when it sees fit. E.g., jQuery.
• frameworks — a particular implementation of a web application, where your code fills in the details. The framework is in charge and it calls into your code when it needs something app specific. E.g., durandal, ember, etc.

AngularJS takes another approach. It attempts to minimize the impedance mismatch between document centric HTML and what an application needs by creating new HTML constructs. AngularJS teaches the browser new syntax through a construct we call directives. Examples include:

• Data binding, as in {{}}.
• DOM control structures for repeating, showing and hiding DOM fragments.
• Support for forms and form validation.
• Attaching new behavior to DOM elements, such as DOM event handling.
• Grouping of HTML into reusable components.

6.Aurelia.js

Aurelia is a front-end JavaScript framework. It is —

1. One of the cleanest frameworks of modern time
2. It’s a next-generation framework because of its capability to create powerful, simple and flawless websites.

Easy to Learn

Aurelia’s standards-based, unobtrusive style makes it the only framework that empowers you to build components using vanilla JavaScript or TypeScript. If you know modern JS and HTML, there’s little more to learn to build even the most complex apps.

High Performance

At the core of Aurelia is a high-performance, reactive system, capable of batching DOM updates in a way that leaves other frameworks, and their virtual DOMs, in the dust. Experience consistent, scalable performance, no matter how complex your UI.

Extensive Ecosystem

State management, internationalization and validation — all official plugins from the core team. CLI, VS Code plugin, and Chrome debugger — optional tools to enhance development. Aurelia is not just a framework, but a powerful platform and ecosystem, designed to ensure your rapid success.

Reactive Binding

Aurelia enables powerful reactive binding to any object. By using adaptive techniques Aurelia selects the most efficient way to observe each property in your model and automatically syncs your UI and your state with best-in-class performance.