Mustache

Description #

Mustache is a logic-less templating language used for rendering dynamic content in a wide range of programming environments, from frontend JavaScript to backend Python, Ruby, and Go.

History #

Mustache was introduced in 2009 by Chris Wanstrath, co-founder of GitHub. Named for its double curly braces ({{ }}), it aimed to simplify templating with a clean, logic-free syntax that promotes separation of concerns across platforms.

Hello World Code #

<h1>{{message}}</h1>

With the context:

{ "message": "Hello, World!" }

How to Run #

Option 1: Online
Try it here: https://tryhandlebarsjs.com/ — compatible with Mustache syntax.

Option 2: Local
Install a Mustache library for your language:

JavaScript Example:

npm install mustache

const Mustache = require("mustache");
const template = "<h1>{{message}}</h1>";
const output = Mustache.render(template, { message: "Hello, World!" });
console.log(output);

Key Concepts #

• Logic-less templating (no if, else, or for inside templates)
• Uses {{ }} for placeholders
• Sections and partials for repeatable blocks
• Portable across JavaScript, Ruby, Python, PHP, Go, etc.
• Encourages separation of data and presentation
• Ideal for simple or static rendering
• Extensible with tools like Hogan.js or Handlebars (a superset)
• Easy to learn and implement
• Lightweight with no runtime dependencies
• Outputs HTML, Markdown, or any text

Try It Online #

https://tryhandlebarsjs.com

Fun Facts #

• Called “logic-less” because it avoids embedding code logic inside templates.
• Widely used in static site generators, email templating, and client-side rendering.
• Handlebars was created as an extension of Mustache with added logic support.

Resources #

Official site
Docs or tutorial
GitHub or interpreter
Community or learning resources