Quick Answer
What is JavaScript?
JavaScript is the programming language of the web, running in every modern browser.
Programming
JavaScript
By Glintr Editorial TeamReviewed by Glintr Learn ReviewersUpdated 5 min readArea: Programming
Definition
JavaScript is a dynamic programming language that runs in browsers and, via Node.js, on servers. It powers interactive UIs, single-page apps, backend services and build tooling.
Related Concepts
- HTMLHTML is the markup language used to define the structure and content of a web page.
- CSSCSS is the style language used to visually design and lay out web pages.
- Web DevelopmentWeb Development is the practice of building websites and web applications — front-end interfaces, back-end services and the systems that connect them.
- ProgrammingProgramming is the act of writing instructions in a language a computer can execute.