JavaScript is the need of the modern web and a must-have skill.
JavaScript is a scripting language that enables you to create dynamically updated content, animate images, and control multimedia, etc. It is used both on the client-side and server-side that allows you to make web pages interactive.
Front-end Web Development
When used with HTML & CSS, JavaScript creates the most dynamic and interactive pages.
React, Angular, and Vue are popular Front-end JavaScript technologies.
There are almost no limits to the things you can do with JavaScript on a web page.
Back-end Web Development
JavaScript Framework Node.js has contributed both to the back-end & increased the performance of the front-end.
Node.js provides an environment containing the necessary tools required for JavaScript to run on serves.
Building Mobile Apps
React Native can be used to build hybrid apps using CSS, HTML & JavaScript.
Machine Learning
Tensorflow.js is a popular machine learning JavaScript library.
Develop ML models in JavaScript, and use ML directly in the browser or in Node.js
Deep Learning
Libraries — brain.js, ConvNetJS, deeplearn.js are there to train neural networks in the browser