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hast-util-parse-selector

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hast-util-parse-selector

hast utility to create an element from a simple CSS selector


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What is hast-util-parse-selector?

The hast-util-parse-selector npm package is a utility for parsing CSS selectors into HAST (Hypertext Abstract Syntax Tree) elements. It allows developers to convert CSS-like selectors into HAST nodes, which can then be manipulated or inspected within JavaScript. This is particularly useful when working with virtual DOMs or when generating HTML content dynamically.

What are hast-util-parse-selector's main functionalities?

Parsing simple selectors

This feature allows for the parsing of simple CSS selectors into HAST nodes. The example demonstrates parsing a selector for a `div` element with an ID of `id` and a class of `className`.

const parseSelector = require('hast-util-parse-selector');
const h = parseSelector('div#id.className');
console.log(h);

Parsing selectors with attributes

This feature enables parsing of selectors that include attributes. The example shows how to parse a selector for an `input` element with a `type` attribute of `text` and a class of `className`.

const parseSelector = require('hast-util-parse-selector');
const h = parseSelector('input[type=text].className');
console.log(h);

Customizing the tag name

This feature allows for customization of the tag name when it is not specified in the selector. The example demonstrates setting a default tag name of `span` for a selector that only specifies a class name.

const parseSelector = require('hast-util-parse-selector');
const h = parseSelector('.className', {tagName: 'span'});
console.log(h);

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Package last updated on 01 Aug 2023

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