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rsdown

High-performance Code Transformer

Transform const and let declarations to var in JavaScript/TypeScript

rsdown

A high-performance JavaScript/TypeScript code transformer powered by Rust and SWC.

Installation

bash
npm install rsdown
# or
pnpm add rsdown
# or
yarn add rsdown

Usage

js
import { transformToVar } from 'rsdown'

const code = `
const x = 1;
let y = 2;
`

const result = transformToVar(code)
console.log(result)
// Output:
// var x = 1;
// var y = 2;