hast utility to create an element from a simple CSS selector.

• What is this?
• When should I use this?
• Install
• Use
• API
  • parseSelector(selector?[, defaultTagName])
• Types
• Compatibility
• Security
• Related
• Contribute
• License

This package is a tiny utility that helps create elements.

This utility is super niche. You probably want the more powerful hastscript or hast-util-from-selector

This package is ESM only. In Node.js (version 16+), install with npm:

npm install hast-util-parse-selector

In Deno with esm.sh:

import {parseSelector} from 'https://esm.sh/hast-util-parse-selector@4'

In browsers with esm.sh:

<script type="module">
  import {parseSelector} from 'https://esm.sh/hast-util-parse-selector@4?bundle'
</script>

import {parseSelector} from 'hast-util-parse-selector'
console.log(parseSelector('.quux#bar.baz.qux'))

Yields:

{ type: 'element',
  tagName: 'div',
  properties: { id: 'bar', className: [ 'quux', 'baz', 'qux' ] },
  children: [] }

This package exports the identifier parseSelector. There is no default export.

Create a hast element from a simple CSS selector.

• selector (string, optional) — simple CSS selector, can contain a tag name (foo), classes (.bar), and an ID (#baz), multiple classes are allowed, uses the last ID if multiple IDs are found
• defaultTagName (string, default: 'div') — tag name to use if selector does not specify one

Built element (Element).

This package is fully typed with TypeScript. It exports no additional types.

Projects maintained by the unified collective are compatible with maintained versions of Node.js.

When we cut a new major release, we drop support for unmaintained versions of Node. This means we try to keep the current release line, hast-util-parse-selector@^4, compatible with Node.js 16.

Improper use of the selector or defaultTagName can open you up to a cross-site scripting (XSS) attack as the value of tagName, when resolving to script, injects a script element into the syntax tree.

Do not use user input in selector or use hast-util-santize.

• hast-util-from-selector — parse complex CSS selectors to nodes

See contributing.md in syntax-tree/.github for ways to get started. See support.md for ways to get help.

This project has a code of conduct. By interacting with this repository, organization, or community you agree to abide by its terms.

MIT © Titus Wormer