Web and technology
JS
Abbreviation for JavaScript
In short and in plain language
JS is the common short name for a programming language in the browser.
It lets a page react to clicks and input.
The browser has to load, read and run large or many scripts.
This can delay how fast a page builds up and reacts to clicks.
Definition
JS is the common abbreviation for JavaScript, the programming language for interactivity in the browser. Large or numerous scripts have to be downloaded, parsed and executed. This can delay how a page renders and responds to clicks.