Mustache.js is a zero-dependency, logic-less templating engine for JavaScript, faithfully implementing the Mustache template system. Its current stable version is 4.2.0, with releases primarily focusing on bug fixes and minor enhancements. The library enables developers to utilize tag-based templates for a wide array of outputs, including HTML, configuration files, and source code, by expanding tags with values provided from a JavaScript object or hash. A key differentiator is its strict adherence to a 'logic-less' philosophy, meaning it explicitly avoids traditional control flow statements (like `if/else` or `for` loops), rendering content solely based on the presence or absence of data and iterating over arrays without explicit loops. Mustache.js offers broad compatibility, supporting CommonJS, AMD, and ECMAScript Modules, making it suitable for modern web browsers, Node.js server-side environments, and even as a command-line tool.
npm install mustacheVerified import paths — ran on the pinned version, not inferred.
This quickstart demonstrates basic template rendering with a view object, rendering from a local file, and an example of using partials. It highlights the `Mustache.render` function.
Review the official Mustache.js v3.0.0 migration guide and thoroughly test your templates after upgrading.
Pre-process your data object to include only the necessary values or computed properties. Implement helper functions in your view object that return processed data rather than embedding logic in templates.
Avoid custom template caching based on `Mustache.Writer.prototype.parse` if you are on affected versions, or ensure you are on a version that explicitly fixes or avoids this issue (e.g., 2.3.2 and later).
Ensure your build tools (webpack, Rollup, etc.) and Node.js environment are compatible with `package.json` `exports`. For older Node.js, explicit paths like `require('mustache/mustache.js')` might be needed, though `require('mustache')` should generally work.Upgrade to Mustache.js v3.1.0 or later to ensure correct partial indentation. If upgrading is not an option, manually adjust template formatting or post-process rendered output.
Ensure you have `import Mustache from 'mustache';` (ESM), `const Mustache = require('mustache');` (CommonJS), or have included the script via `<script src="..."></script>` in HTML, depending on your environment.Access `render` as a property of the `Mustache` object: `import Mustache from 'mustache'; Mustache.render(...)`. The `render` function is not a direct named export.
Verify partial syntax (`{{> partial_name}}`). Ensure the `partials` object passed to `Mustache.render` contains the required templates. If using an older version, upgrade to v3.1.0 or newer to address known indentation bugs.No dependency data recorded yet.