@vanviegen/typestript

TypeStript

A tiny (3kb gzipped), dependency-free library that converts (most) TypeScript to JavaScript in the browser.

Features

TypeStript is a lightweight TypeScript transpiler designed for in-browser use. It's perfect for live code examples, demos, and educational purposes where you need to convert TypeScript to JavaScript on the fly.

• Tiny footprint: Only 3kb gzipped
• Zero dependencies: Works standalone in any browser
• Simple API: Easy to integrate
• Error recovery: Can continue transpilation even when encountering errors

Warning

Do not trust your production code with this! It takes some shortcuts, and I haven't looked at any standards documents to write this.

Usage

Auto-transpile from CDN

<script src="https://unpkg.com/typestript@latest/dist-min/browser.js"></script>
<script src="text/typescript">
  interface User {
    name: string;
    age: number;
  }
  
  function greet(user: User): string {
    return `Hello, ${user.name}!`;
  }
  greet({name: "Frank", age: 44});
</script>

API

npm install typestript

const { typestript } = require('typestript');

const jsCode = typestript(`
  interface User {
    name: string;
    age: number;
  }
  
  function greet(user: User): string {
    return 'Hello, ' + user.name + '!';
  }
  greet({name: "Frank", age: 44});
`);

console.log(jsCode);

CLI

npx typestript inputfile.ts --output outputfile.js --debug --recover

Everything after the input filename can be left out.