Detailed Definition
TypeScript is an open-source programming language developed by Microsoft. It is a strict syntactical superset of JavaScript, adding optional static typing to the language.
Glossary HubProgramming
What is TypeScript?
A strongly typed programming language that builds on JavaScript.
1 min read•Updated 2026-06-08
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Practical Example
Code/Output blockfunction log(name: string): void { console.log(name); }Why It Matters
TypeScript catches type mismatch errors during development before code compiles, reducing runtime bugs and improving developer coordination in large codebases.
Common Use Cases
1
Building scalable frontend structures in Next.js projects
2
Enabling auto-complete documentation inside IDE code editors
3
Defining strict structures for API data models
Frequently Asked Questions
No, browsers only run JavaScript. TypeScript compiles down to standard JavaScript before execution.
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