TypeScript
TypeScript IntroductionTypeScript Introduction
TypeScript is JavaScript with strict rules for data types.
Read Time
5 min readDifficulty
BeginnerLast Updated
Jun 15, 2026Version
v1.0.0Introduction
TypeScript catches silly mistakes before your code even runs. It is completely based on JavaScript, but it forces developers to define exactly what kind of data (like numbers or text) they are using. Browsers cannot read TypeScript, so it automatically converts itself into standard JavaScript.
Key Points
- Microsoft created and maintains TypeScript.
- It catches errors instantly while you type.
- TypeScript code converts perfectly into JavaScript.
- Large companies use it to prevent bugs.