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hast-util-is-element

hast utility to check if a node is a (certain) element.

Install

npm:

npm install hast-util-is-element

Use

var is = require('hast-util-is-element')

is({type: 'text', value: 'foo'}) // => false

is({type: 'element', tagName: 'a'}, 'a') // => true

is({type: 'element', tagName: 'a'}, ['a', 'area']) // => true

API

`isElement(node[, tagName|tagNames])`

Check if the given value is a (certain) element.

When given a tagName or tagNames, checks that node is an element whose tagName field matches tagName or is included in tagNames
Otherwise checks that node is an element

Parameters

node (*) — Value to check, probably Node
tagName (string, optional) — Value that nodes tagName field should match
tagNames (Array.<string>, optional) — Values that should include nodes tagName field should match

Returns

boolean — whether node passes the test.

Throws

Error — When the second parameter is given but invalid.

Security

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

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.

readme.md