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JavaScript

JavaScript is a programming language used to add behaviour to web interfaces and to build other applications

What it means, how it is used and where it comes up, with its related concepts.

What it is and how it works

It can run in browsers and on servers. On a website it handles interactions and updates content, but its use should take performance and accessibility into account. An important function needs clear states for when execution fails or data does not arrive.

Related concepts

JavaScript: what it is and how it works · Zorraquino