Installation

Prerequisites

• Node.js — ≥ 18 for the published npm package and native addon builds (see root package.json engines). The documentation site in docs/ is built with Astro and requires Node ≥ 22.12 (see docs/package.json engines); use that version when running npm run dev or npm run build in docs/.
• Rust (stable) and a C toolchain (for napi-rs native builds)

From the repository

cd runjucks
npm install
npm run build

npm run build runs napi build and produces runjucks.*.node, index.js, and index.d.ts for your platform.

Debug build:

npm run build:debug

Using the package

import { renderString, Environment } from '@zneep/runjucks'

console.log(renderString('Hello {{ name }}', { name: 'Ada' }))

const env = new Environment()
env.setAutoescape(true)
console.log(env.renderString('Plain text', {}))

See JavaScript API for configure, template maps, and extensions, and the Node.js API reference for full TypeScript signatures.