JavaScript is one of the most popular programming languages in the world, and is now widely used also outside of the browser. The rise of Node.js in the last few years unlocked back-end development – once the domain of Java, Ruby, Python, PHP, and more traditional server-side languages.
Either you love it or hate it, but in the age of Microservice and REST API, you can not ignore JavaScript.JavaScript was once upon a time used only in client side(browser), but node js (execution engine/run time/web server) have made possible to run javascript on server side. JavaScript is everywhere – on Desktop/Server/Mobile.You can create mobile web app with javascript and html5, which has lot of advantages like save licensing cost $99 yearly to pay Apple for making IOS apps and you don’t have to purchase MAC laptop to make your IOS app(Apple’s app can only be made in MAC).