remark-slug
Advanced tools
Package description
The remark-slug npm package is a plugin for the remark Markdown processor that automatically adds slugs to headings in a Markdown document. This is useful for generating links to specific sections of the document, enhancing navigation and accessibility.
Automatic Slug Generation
This feature automatically generates slugs for each heading in a Markdown document. The code sample shows how to use remark-slug with remark and remark-html to convert a Markdown heading into HTML with a slug.
const remark = require('remark');
const remarkHtml = require('remark-html');
const remarkSlug = require('remark-slug');
remark()
.use(remarkSlug)
.use(remarkHtml)
.process('# Hello world', function (err, file) {
console.log(String(file));
});markdown-it-anchor is a plugin for the markdown-it Markdown parser. Similar to remark-slug, it adds anchors to headings in Markdown documents. While remark-slug is specifically designed for the remark ecosystem, markdown-it-anchor serves the markdown-it ecosystem, offering similar functionality but within a different processing environment.
rehype-slug is a plugin for the rehype processor, which is part of the unified.js ecosystem, similar to remark. It adds slugs to HTML elements processed through rehype. This is akin to what remark-slug does but is applied directly to HTML rather than Markdown, making it suitable for projects that work with HTML content at a later stage in the content pipeline.
Readme
Add anchors to remark heading nodes using GitHub’s algorithm.
:warning: This is often useful when compiling to HTML. If you’re doing that, it’s probably smarter to use
remark-rehypeandrehype-slugand benefit from the rehype ecosystem.
npm:
npm install remark-slug
Say we have the following file, example.md:
# Lorem ipsum 😪
## dolor—sit—amet
### consectetur & adipisicing
#### elit
##### elit
And our script, example.js, looks as follows:
var fs = require('fs');
var unified = require('unified');
var markdown = require('remark-parse');
var slug = require('remark-slug');
var remark2rehype = require('remark-rehype');
var html = require('rehype-stringify');
unified()
.use(markdown)
.use(slug)
.use(remark2rehype)
.use(html)
.process(fs.readFileSync('example.md'), function (err, file) {
if (err) throw err;
console.log(String(file));
});
Now, running node example yields:
<h1 id="lorem-ipsum-">Lorem ipsum 😪</h1>
<h2 id="dolorsitamet">dolor—sit—amet</h2>
<h3 id="consectetur--adipisicing">consectetur & adipisicing</h3>
<h4 id="elit">elit</h4>
<h5 id="elit-1">elit</h5>
remark.use(slug)Adds slugs to markdown headings.
Uses github-slugger, which creates GitHub-style slugs.
Sets data.id and data.hProperties.id on heading nodes.
The first can be used by any plugin as a unique identifier, the second tells
mdast-util-to-hast (used in remark-html and
remark-rehype) to use its value as an id attribute.
rehype-slug — Add slugs to headings in HTMLSee contribute.md in remarkjs/remarkjs for ways to get
started.
This organisation has a Code of Conduct. By interacting with this repository, organisation, or community you agree to abide by its terms.
FAQs
Legacy remark plugin to add anchors to headings — please use `rehype-slug`
We found that remark-slug demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
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