Practical uses
- Develop a typed React or Vue web application.
- Create a Node.js APIType validation.
- Refactor a large existing JavaScript project.
Pros and cons
What TypeScript does especially well — and the limits to anticipate.
Pros
- Completely free and open source.
- Error detection in editor (excellent DX).
- Safer refactoring thanks to types.
- Large adoption and mature ecosystem.
Cons
- Initial learning curve.
- Compilation step before execution.
- Overhead for very small projects.
TypeScript: when it makes sense.
TypeScript becomes worthwhile as JavaScript projects grow or teams collaborate; for simple scripts, plain JavaScript suffices.
Keep if
You develop in JavaScript on medium to large projects.. You want to catch errors in the editor, not at runtime.
Challenge if
You write simple, pure JavaScript.. You have a single script of a few lines.
