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March 10, 20241 min read
TypeScript Best Practices in 2024
TypeScriptJavaScriptBest Practices
TypeScript Best Practices in 2024
TypeScript has become the standard for large-scale JavaScript applications. Here are some best practices.
Use Strict Mode
Always enable strict mode in your tsconfig.json:
{ "compilerOptions": { "strict": true }}Prefer Interfaces Over Types for Objects
// Prefer this
interface User { name: string; email: string;}// Over this (for object shapes)
type User = { name: string; email: string;};Use Discriminated Unions
type Result<T> =
| { success: true; data: T } | { success: false; error: string };Avoid 'any' Type
Use 'unknown' instead of 'any' when type is truly unknown.
Following these practices will help you write better TypeScript code!