liquidjs

A shopify compatible Liquid template engine in pure JavaScript. The purpose of this repo is to provide a standard Liquid implementation for the JavaScript community. All features, filters and tags in shopify/liquid are supposed to be built in LiquidJS, though there are still some differences and limitations (see below).

Version 9 has published, see how to migrate to 9.0.0!

Get Started

Install via npm:

npm install --save liquidjs

var { Liquid } = require('liquidjs');
var engine = new Liquid();

engine
    .parseAndRender('{{name | capitalize}}', {name: 'alice'})
    .then(console.log);     // outputs 'Alice'

Or include the UMD build, a live demo is available on jsfiddle: https://jsfiddle.net/x43eb0z6/. You may need a Promise polyfill for Node.js < 4 and ES5 browsers like IE and Android UC.

<script src="//unpkg.com/liquidjs/dist/liquid.min.js"></script>     <!--for production-->
<script src="//unpkg.com/liquidjs/dist/liquid.js"></script>         <!--for development-->

Also available from CLI:

echo '{{"hello" | capitalize}}' | npx liquidjs

For detailed documents, see:

• The Wiki Page contains tutorials and advanced topics.
• The API Reference provides detailed descriptions for classes, methods and properties.

Differences and Limitations

• Dynamic file locating (enabled by default), that means layout/partial names are treated as variables in liquidjs. See #51.
• Truthy and Falsy. All values except undefined, null, false are truthy, whereas in Ruby Liquid all except nil and false are truthy. See #26.
• Number. In JavaScript we cannot distinguish or convert between float and integer, see #59. And when applied size filter, numbers always return 0, which is 8 for integer in ruby, cause they do not have a length property.
• .to_liquid() is replaced by .toLiquid()
• .to_s() is replaced by JavaScript .toString()

Features that available on shopify website but not on shopify/liquid repo will not be implemented in this repo, but there're some plugins available: https://github.com/harttle/liquidjs/wiki/Plugins

Related Packages

• gulp-liquidjs: A shopify compatible Liquid template engine for Gulp using liquidjs.
• grunt-liquify: A Grunt task to process Liquid using liquidjs. Use it to add Liquid magic to your scripts and css assets.
• react-liquid: Liquid templating language component for React
• @11ty/eleventy: A simpler static site generator. An alternative to Jekyll. Written in JavaScript. Transforms a directory of templates (of varying types) into HTML.

Contribute Guidelines

• Code Style: https://github.com/standard/eslint-config-standard, npm run lint to check locally.
• Testing: make sure test cases still pass, use npm test to check locally.
• Commit Message: align to The Angular Commit Message Guidelines, especially the Type identifier, to allow the semantic-release bot do the work.

Contributors ✨

This project follows the all-contributors specification. Contributions of any kind are welcome! Thanks goes to these wonderful people:

Jun Yang 🚧 💻	chenos 💻	Zach Leatherman 🐛	Tim Hardy 💻	Paul Robert Lloyd 💻 🐛	Alec Larson 💻	Patrick Malouin 💻 📖
jaswrks 💻	三三 💻 🤔	ssendev 💻 📖	wojtask9 💻	Andrew Barclay 💻	Cory Mawhorter 💻	Mehdi Jaffery 💻
Robin Bijlani 💻 🐛	Ryan Kennedy 💻	Sami Kukkonen 💻	Scott Santucci 💻	Steven 💡 💻	azu 📖	Joonas 💻
Jamel A. 💻	Brandon Pittman 💻	tgrandgent 💻	Martin Schuster 💻