By Sean Toru | last updated 28th December 2020



Javascript is best known as the programming language that enables web pages to be interactive. So if you are writing something in Google Docs, or clicking a like button on Facebook, the code that makes the site work and respond to you is written in the Javascript language.

Javascript is a very popular and versatile language. As well as running inside web browsers such as Chrome, it can also be used to create mobile applications, to run web servers, and to create custom ‘tooling’ scripts on your local computer that can perform any number of tasks. It’s not the most elegant or the most powerful of languages but it’s ubiquity makes it a must-know language for any programmer.

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