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node-html-parser

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node-html-parser

A very fast HTML parser, generating a simplified DOM, with basic element query support.

  • 3.0.1
  • Source
  • npm
  • Socket score

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2.3M
decreased by-20.88%
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What is node-html-parser?

The node-html-parser package is a fast HTML parser designed for Node.js, which allows users to parse HTML documents and manipulate the resulting DOM tree. It provides an API to navigate and modify the DOM, extract data, and serialize DOM back to HTML.

What are node-html-parser's main functionalities?

Parsing HTML string to DOM

This feature allows you to parse a string containing HTML and creates a DOM tree that can be manipulated. The example code demonstrates parsing an HTML string and logging the structure of the first child element.

const { parse } = require('node-html-parser');
const root = parse('<ul id="list"><li>Hello World</li></ul>');
console.log(root.firstChild.structure);

Querying the DOM

This feature enables querying the DOM tree for elements using selectors. The code sample shows how to select the first 'li' element and log its text content.

const { parse } = require('node-html-parser');
const root = parse('<ul id="list"><li>Hello World</li></ul>');
const listItem = root.querySelector('li');
console.log(listItem.text);

Modifying the DOM

This feature allows you to modify the DOM tree by changing the content of elements. In the example, the content of the 'li' element is changed from 'Hello World' to 'Hello Universe', and the updated HTML is logged.

const { parse } = require('node-html-parser');
const root = parse('<ul id="list"><li>Hello World</li></ul>');
const listItem = root.querySelector('li');
listItem.set_content('Hello Universe');
console.log(root.toString());

Serializing DOM back to HTML

After manipulating the DOM, you can serialize it back to an HTML string. The code sample demonstrates how to convert the DOM tree back into an HTML string and log it.

const { parse } = require('node-html-parser');
const root = parse('<div><p>Hello World</p></div>');
const html = root.toString();
console.log(html);

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Package last updated on 23 Feb 2021

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