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Web Frontend2026-05-17

TypeScript

Also known as: TS / TypeScript言語

Microsoft's statically typed superset of JavaScript. Compile-time type checking prevents bugs in large codebases and enriches IDE autocompletion, making it the de-facto standard for modern frontend and backend development.


Overview

TypeScript extends JavaScript with type annotations, interfaces, generics, and enums, ultimately transpiling to standard JS. All major frameworks — Next.js, React, Vue, Hono — provide first-class TypeScript support, and .d.ts declaration files expose types for external libraries.

Type-Safe Full-Stack

Hono's RPC mode and tRPC enable type-safe full-stack development by sharing types between frontend and backend. See the Hono RPC complete guide for implementation details.

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