require "fs"
    console.log fs.readFileSync "/etc/passwd"'
  

`html


Hello there.

  
    require "fs"
    console.log fs.readFileSync "/etc/passwd"'
  

Supports the Highlight.js options (e.g. classPrefix, languages, tabReplace).

If you'd like to turn off automatic language detection, set {languages: []}. Only code blocks marked with an appropriate class like lang-js will be highlighted (useful when using fenced code blocks in Markdown).

By default, this plugin will highlight all code elements. You can override the selector for what to highlight by passing in a selector option like so: {selector: 'pre > code'}. This will only highlight

's immediate  children elements. This is a metalsmith-code-highlight specific option—it isn't part of highlight.js.
Using with metalsmith-dom-transform
If you're already using metalsmith-dom-transform, you can save a little bit of overhead by accessing the code highlight transform directly:
`js
const domTransform = require('metalsmith-dom-transform');
const codeHighlightTransform = require('metalsmith-code-highlight/transform');
metalsmith.use(domTransform({
  transforms: [
    codeHighlightTransform(options),
    // Your other transforms go here
  ]
}));
`
Changelog
* 1.1.1: Update a bunch of dependencies
* 1.1.0: Allow a selector option for overriding the default selector of code.
* 1.0.3: Upgrade to metalsmith-dom-transform 2.0.0, no functional changes
* 1.0.2: Upgrade to metalsmith-dom-transform 1.0.1, may cause slight change in HTML output when there is no content to highlight
* 1.0.1: Use highlightBlock from highlight.js for the highlighting, slight change in HTML output
* 1.0.0: Upgrade to metalsmith-dom-transform 1.0.0 (API change)
* 0.1.1: Upgrade dependencies
* 0.1.0: Expose transform for use with metalsmith-dom-transform`
Alternatives
* metalsmith-metallic: Highlights only within Markdown