Prism is a lightweight, extensible syntax highlighter, built with modern web standards in mind. It’s used in thousands of websites, including some of those you visit daily.
Prism is a lightweight, extensible syntax highlighter built with modern web standards in mind. It is designed to be "dead simple" to use while remaining highly customizable for developers.
Here is a summary of its principal features and functionalities:
1. Core Philosophy and Performance
Lightweight: The core library is only 2KB (minified and gzipped), with each language definition adding only about 300-500 bytes.
Blazing Fast: It supports parallelism with Web Workers to prevent the UI from freezing during the highlighting of large code blocks.
Semantic Standards: Prism encourages good authoring practices by forcing the use of the correct HTML5
<code>element (either alone for inline code or inside a<pre>for blocks).
2. Ease of Use and Implementation
Simple Setup: Implementation only requires including
prism.cssandprism.jsand using proper HTML5 code tags.Language Inheritance: To save time, language classes are inherited. You can define a language once on a container (like
<body>) to apply it to all descendant code snippets.Intuitive Styling: All styling is handled via CSS with sensible, human-readable class names (e.g.,
.comment,.string), making customization straightforward.Automatic Highlighting: It automatically detects code blocks and can highlight embedded languages, such as CSS or JavaScript inside an HTML file.
3. Extensibility and Customization
Plugin Architecture: Prism features a robust plugin system that adds functionality without bloating the core. Popular plugins include:
Line Numbers and Line Highlight.
Copy to Clipboard button.
Autoloader to automatically fetch required languages from a CDN.
Show Invisibles for tabs and line breaks.
Language Support: It currently supports 297 languages. Developers can easily define new languages using regular expressions.
4. Compatibility and Integration
Wide Browser Support: It works on Edge, IE11, Firefox, Chrome, Safari, Opera, and most mobile browsers.
Node.js Support: Prism can be used on the server or via command line, which is ideal for generating static HTML or AMP pages.
Bundler Integration: It is compatible with Webpack, Browserify, and other bundlers via npm, with a dedicated Babel plugin to minimize the final bundle size.
Prism acts like a high-performance, lightweight "skin" for your code: it doesn't just make your snippets look professional and readable; it does so by following strict web standards, ensuring your website remains fast and accessible across all modern devices.
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