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@web/parse5-utils

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@web/parse5-utils

Utils for using parse5

  • 0.0.0-canary-20230403143511
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  • npm
  • Socket score

Version published
Weekly downloads
120K
decreased by-8.87%
Maintainers
7
Weekly downloads
 
Created

What is @web/parse5-utils?

@web/parse5-utils is a utility library for working with the parse5 HTML parser. It provides a set of helper functions to manipulate and query the parse5 AST (Abstract Syntax Tree) more easily.

What are @web/parse5-utils's main functionalities?

Querying Elements

This feature allows you to query elements from the parse5 AST using CSS selectors. In the example, it queries all <p> elements from the parsed HTML.

const { parse } = require('parse5');
const { queryAll } = require('@web/parse5-utils');

const html = '<div><p>Hello</p><p>World</p></div>';
const document = parse(html);
const paragraphs = queryAll(document, 'p');
console.log(paragraphs.length); // 2

Manipulating Elements

This feature allows you to manipulate elements within the parse5 AST. In the example, it appends a new <p> element with text 'Hello World' to an existing <div>.

const { parse, serialize } = require('parse5');
const { append, createElement } = require('@web/parse5-utils');

const html = '<div></div>';
const document = parse(html);
const div = document.childNodes[0].childNodes[1];
const newElement = createElement('p', {}, 'Hello World');
append(div, newElement);
console.log(serialize(document)); // <html><head></head><body><div><p>Hello World</p></div></body></html>

Removing Elements

This feature allows you to remove elements from the parse5 AST. In the example, it removes the first <p> element from the parsed HTML.

const { parse, serialize } = require('parse5');
const { remove } = require('@web/parse5-utils');

const html = '<div><p>Hello</p><p>World</p></div>';
const document = parse(html);
const paragraph = document.childNodes[0].childNodes[1].childNodes[0];
remove(paragraph);
console.log(serialize(document)); // <html><head></head><body><div><p>World</p></div></body></html>

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Package last updated on 03 Apr 2023

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