JSY indented JavaScript

JSY is a syntax dialect for ECMAScript using offside indentation similar to Python or CoffeeScript from ES5 to ES2025.

• JSY website
• JSY syntax dialect

Use

With NodeJS:

# Install
> npm install @jsy-lang/jsy @jsy-lang/nodejs

# Use JSY directly via Node CLI
> node --import @jsy-lang/nodejs some-demo.jsy

# See how JSY transpiles
> npx @jsy-lang/jsy some-demo.jsy

Or bundle with Rollup or Vite via @jsy-lang/jsy/rollup