What is TypeScript?
Also called: TS
The short answer
TypeScript is JavaScript with types: it checks code before it runs, catching mistakes like passing the wrong data to a function, then compiles to plain JavaScript.
TypeScript, explained
Types act as documentation that cannot go stale and let editors and AI tools understand code far better, which is why most serious web projects use it.
Questions people ask about TypeScript
What is TypeScript?
TypeScript is JavaScript with types: it checks code before it runs, catching mistakes like passing the wrong data to a function, then compiles to plain JavaScript.
Related terms
JavaScript is the programming language of the web: it runs in every browser and makes pages interactive, from menus and forms to games and 3D.
ReactReact is a JavaScript library for building user interfaces from reusable components that update automatically when their data changes.
LintingLinting is automatically checking code for errors, risky patterns and style problems before it runs, using a tool like ESLint.
DOMThe DOM is the browser's live, tree-shaped model of a web page; JavaScript reads and changes the DOM to update what visitors see.
Part of the Web Encyclopedia by Apex Flow Digital. Definitions are general knowledge, kept current, with no invented statistics.