hast-util-is-css-link
v3.0.1
Published
hast utility to check if an element is a css link
Downloads
82,220
Readme
hast-util-is-css-link
hast
utility to check if an element is a CSS link.
Contents
- What is this?
- When should I use this?
- Install
- Use
- API
- Syntax
- Syntax tree
- Types
- Compatibility
- Security
- Contribute
- License
What is this?
This package is a utility to check whether a hast node is a <link>
that
references CSS.
When should I use this?
You can use this package to check whether links reference CSS or something else.
Install
This package is ESM only. In Node.js (version 16+), install with npm:
npm install hast-util-is-css-link
In Deno with esm.sh
:
import {isCssLink} from 'https://esm.sh/hast-util-is-css-link@3'
In browsers with esm.sh
:
<script type="module">
import {isCssLink} from 'https://esm.sh/hast-util-is-css-link@3?bundle'
</script>
Use
import {h} from 'hastscript'
import {isCssLink} from 'hast-util-is-css-link'
isCssLink(h('link', {rel: ['stylesheet', 'author']})) //=> true
isCssLink(h('link', {rel: ['stylesheet'], type: 'text/css'})) //=> true
isCssLink(h('link', {rel: ['stylesheet'], type: 'text/foo'})) //=> false
API
This package exports the identifier
isCssLink
.
There is no default export.
isCssLink(node)
Check whether a hast node is a <link>
that references CSS.
Returns true
if node
is a <link>
element with a rel
list that
contains 'stylesheet'
and has no type
, an empty type
, or 'text/css'
as its type
.
Parameters
node
(Node
) — node to check
Returns
Whether a node is a <link>
that references CSS (boolean
).
Syntax
HTML is parsed according to WHATWG HTML (the living standard), which is also followed by all browsers.
Syntax tree
The syntax tree used is hast.
Types
This package is fully typed with TypeScript.
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-is-css-link@^3
,
compatible with Node.js 16.
Security
As rehype works on HTML and improper use of HTML can open you up to a
cross-site scripting (XSS) attack, use of rehype can also be unsafe.
Use rehype-sanitize
to make the tree safe.
Contribute
See contributing.md
in rehypejs/.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.