Description #
Handlebars is a lightweight templating language that enables you to generate HTML dynamically by embedding expressions in your templates. It’s often used in web development to separate logic from presentation.
History #
Handlebars was created by Yehuda Katz in 2010 as a semantic, logic-less templating engine built on top of Mustache.js. It adds powerful features like helpers and partials while maintaining readability and simplicity. Handlebars has been used in popular projects like Ember.js, Ghost, and even static site generators.
Hello World Code #
<h1>Hello, {{name}}!</h1>const source = "<h1>Hello, {{name}}!</h1>";
const template = Handlebars.compile(source);
const context = { name: "World" };
const html = template(context);
console.log(html); // <h1>Hello, World!</h1>How to Run #
Option 1: Online
Option 2: Local
Install via npm:
npm install handlebarsCreate a .js file and run:
node yourscript.jsKey Concepts #
- Logic-less templating
- Curly brace syntax
{{ }} - Helpers for custom logic
- Partials for reusable blocks
- Compile templates to JavaScript functions
- Separation of logic and view
- Works in browser and Node.js
- Data binding through context objects
- Easy integration with frameworks
- Supports conditional rendering and loops
Try It Online #
Fun Facts #
- Handlebars is an extension of Mustache, adding features developers often wished Mustache had.
- Used by major platforms like Ghost CMS and Ember.js.
- Great for static site generation and rendering email templates.
