hast-util-has-property

hast utility to check if an element has a property.

Install

This package is ESM only: Node 12+ is needed to use it and it must be imported instead of required.

npm:

npm install hast-util-has-property

Use

import {hasProperty} from 'hast-util-has-property'

hasProperty({type: 'text', value: 'alpha'}, 'bravo') // => false

hasProperty(
  {
    type: 'element',
    tagName: 'div',
    properties: {id: 'bravo'},
    children: []
  },
  'className'
) // => false

hasProperty(
  {
    type: 'element',
    tagName: 'div',
    properties: {id: 'charlie'},
    children: []
  },
  'id'
) // => true

API

This package exports the following identifiers: hasProperty. There is no default export.

hasProperty(node, name)

Check if node is an element that has a name property name.

Parameters

• node (Node, optional) — Node to check
• name (string) - Property name

Returns

boolean — Whether node is an element that has a name property name.

Security

hast-util-has-property does not change the syntax tree so there are no openings for cross-site scripting (XSS) attacks.

Related

• hast-util-is-element — check if a node is a (certain) element
• hast-util-is-body-ok-link — check if a node is “Body OK” link element
• hast-util-is-conditional-comment — check if a node is a conditional comment
• hast-util-is-css-link — check if a node is a CSS link element
• hast-util-is-css-style — check if a node is a CSS style element
• hast-util-embedded — check if a node is an embedded element
• hast-util-heading — check if a node is a heading element
• hast-util-interactive — check if a node is interactive
• hast-util-is-javascript — check if a node is a JavaScript script element
• hast-util-labelable — check whether a node is labelable
• hast-util-phrasing — check if a node is phrasing content
• hast-util-script-supporting — check if a node is a script-supporting element
• hast-util-sectioning — check if a node is a sectioning element
• hast-util-transparent — check if a node is a transparent element
• hast-util-whitespace — check if a node is inter-element whitespace

Contribute

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.

License

MIT © Titus Wormer