TypeScript Tips You Should Know

Introduction

TypeScript is most helpful when it makes intent clearer. The goal is not to impress the compiler. The goal is to make bugs harder to write.

Use Inference Well

You do not need to annotate every variable. Let inference carry the simple cases and spend your effort on public boundaries.

Prefer Narrow Types

• Use string unions for known variants
• Model nullable states explicitly
• Avoid `any` whenever a better shape exists

Conclusion

A good TypeScript codebase usually feels calmer, not louder. Small habits compound into much better maintainability.