TypeScript Best Practices for 2024

A comprehensive guide to writing better TypeScript code.

Use Strict Mode

Always enable strict mode in your tsconfig.json:

jsonCopy
{
  "compilerOptions": {
    "strict": true
  }
}

Prefer Type Inference

Let TypeScript infer types when possible:

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// ❌ Redundant type annotation
const name: string = "John";

// ✅ Let TypeScript infer
const name = "John";

Use Utility Types

TypeScript provides powerful utility types:

typescriptCopy
interface User {
  id: string;
  name: string;
  email: string;
  password: string;
}

// Pick only what you need
type PublicUser = Omit<User, 'password'>;

// Make all properties optional
type PartialUser = Partial<User>;

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