Use-Cases of JavaScript Like FB
JavaScript is a scripting language that can be used in multiple contexts. It can be used in a web browser, and thus gives life to the web pages. Remember it can also run outside a browser as well, like in a server backend or like in node.js.
For software, there are many which uses JavaScript module or a plugin to achieve a certain functionality. Node.js is your friend here. Eclipse, brackets, many IDE use these.
Companies — it’s just too many. Any company who is working on a web page will use JavaScript. For companies who works only on JavaScript, any web development / design company ought to use it. FB, Google, Twitter….. List will be endless
There are way too many open source projects very actively progressing like JQuery, Angular, Ember, Backbone which are libraries/frameworks built on top of javascript to achieve a different perspective in using it.
Facebook is one of the most famous pieces of software and tech. companies in the world. It not only uses Javascript but releases free-software frameworks like React : A JavaScript library for building user interfaces written in Javascript.
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