…
\n```\n\n…and our module `example.js` contains:\n\n```js\nimport {rehype} from 'rehype'\nimport rehypeAutolinkHeadings from 'rehype-autolink-headings'\nimport rehypeSlug from 'rehype-slug'\nimport {read} from 'to-vfile'\n\nconst file = await rehype()\n .data('settings', {fragment: true})\n .use(rehypeSlug)\n .use(rehypeAutolinkHeadings)\n .process(await read('example.html'))\n\nconsole.log(String(file))\n```\n\n…then running `node example.js` yields:\n\n```html\n…
\n```\n\n## API\n\nThis package exports no identifiers.\nThe default export is [`rehypeAutolinkHeadings`][api-rehype-autolink-headings].\n\n### `unified().use(rehypeAutolinkHeadings[, options])`\n\nAdd links from headings back to themselves.\n\n###### Parameters\n\n* `options` ([`Options`][api-options], optional)\n — configuration\n\n###### Returns\n\nTransform ([`Transformer`][unified-transformer]).\n\n###### Notes\n\nThis plugin only applies to headings with `id`s.\nUse `rehype-slug` to generate `id`s for headings that don’t have them.\n\nSeveral behaviors are supported:\n\n* `'prepend'` (default) — inject link before the heading text\n* `'append'` — inject link after the heading text\n* `'wrap'` — wrap the whole heading text with the link\n* `'before'` — insert link before the heading\n* `'after'` — insert link after the heading\n\n### `Behavior`\n\nBehavior (TypeScript type).\n\n###### Type\n\n```ts\ntype Behavior = 'after' | 'append' | 'before' | 'prepend' | 'wrap'\n```\n\n### `Build`\n\nGenerate content (TypeScript type).\n\n###### Parameters\n\n* `element` ([`Element`][hast-element])\n — current heading\n\n###### Returns\n\nContent ([`Array