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hast-util-whitespace
hast utility to check if a node is inter-element whitespace.
Contents
- What is this?
- When should I use this?
- Install
- Use
- API
- Types
- Compatibility
- Security
- Related
- Contribute
- License
What is this?
This package is a small utility that checks if a node is whitespace according to HTML.
When should I use this?
This utility is super niche, if you’re here you probably know what you’re looking for!
Install
This package is ESM only. In Node.js (version 16+), install with npm:
npm install hast-util-whitespace
In Deno with esm.sh:
import {whitespace} from 'https://esm.sh/hast-util-whitespace@3'
In browsers with esm.sh:
<script type="module">
import {whitespace} from 'https://esm.sh/hast-util-whitespace@3?bundle'
</script>
Use
import {whitespace} from 'hast-util-whitespace'
whitespace({
type: 'element',
tagName: 'div',
properties: {},
children: []
}) // => false
whitespace({
type: 'text',
value: '\t \n'
}) // => true
whitespace({
type: 'text',
value: ' text\f'
}) // => false
API
This package exports the identifier whitespace.
There is no default export.
whitespace(thing)
Check if the given value is inter-element whitespace.
Parameters
thing(Nodeorstring, optional) — thing to check
Returns
Whether the value is inter-element whitespace (boolean): consisting of zero
or more of space, tab (\t), line feed (\n), carriage return (\r), or form
feed (\f).
If a node is passed it must be a Text node, whose value field is
checked.
Types
This package is fully typed with TypeScript. It exports no additional types.
Compatibility
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-whitespace@^3,
compatible with Node.js 16.
Security
hast-util-whitespace 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) elementhast-util-has-property— check if a node has a propertyhast-util-transparent— check if a node is a transparent elementhast-util-heading— check if a node is a heading elementhast-util-labelable— check whether a node is labelablehast-util-phrasing— check if a node is phrasing contenthast-util-embedded— check if a node is an embedded elementhast-util-sectioning— check if a node is a sectioning elementhast-util-interactive— check if a node is interactivehast-util-script-supporting— check if a node is a script-supporting elementhast-util-is-body-ok-link— check if a node is “Body OK” link elementhast-util-is-conditional-comment— check if a node is a conditional commenthast-util-is-css-link— check if a node is a CSS link elementhast-util-is-css-style— check if a node is a CSS style elementhast-util-is-javascript— check if a node is a JavaScript script element
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.