Angular.js is among the most popular JS framework which is majorly used for developing a single page web application. Angular.js helps in developing dynamic, interactive, rich and fast web applications. Angular.js allows the entire content of the website gets directly transferred from the server to the browser and loads all the pages at that very same time. This speeds up the loading time. Angular.js helps in building mobile and desktop applications both.
2- React.js – A JS Library For Developing UI Apps
React, developed by Facebook, was released in 2013. It has quickly gained popularity and has become the fastest growing JS framework. React is suitable for high performing enterprise applications since it is powered by the user interfaces of Facebook and Instagram. React can be rendered on the server using Node.js and can also be used to power mobile applications. React.js is considered as efficient and awesome for SEO.