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hast-util-sanitize

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hast-util-sanitize

hast utility to sanitize nodes

  • 5.0.2
  • latest
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  • npm
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679K
increased by5.44%
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2
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What is hast-util-sanitize?

The `hast-util-sanitize` package is a utility for sanitizing HTML content represented as HAST (Hypertext Abstract Syntax Tree). It helps in cleaning and securing HTML by removing potentially harmful elements and attributes, making it safe for use in web applications.

What are hast-util-sanitize's main functionalities?

Basic Sanitization

This feature allows you to sanitize a basic HAST tree, removing any potentially harmful elements or attributes.

const sanitize = require('hast-util-sanitize');
const hast = { type: 'element', tagName: 'div', properties: { className: 'foo' }, children: [] };
const cleanHast = sanitize(hast);
console.log(cleanHast);

Custom Schema

This feature allows you to define a custom schema for sanitization, specifying which tags and attributes are allowed.

const sanitize = require('hast-util-sanitize');
const schema = { tagNames: ['div', 'span'], attributes: { '*': ['className'] } };
const hast = { type: 'element', tagName: 'div', properties: { className: 'foo', id: 'bar' }, children: [] };
const cleanHast = sanitize(hast, schema);
console.log(cleanHast);

Sanitizing Nested Elements

This feature demonstrates sanitizing nested elements, ensuring that even deeply nested potentially harmful elements are removed.

const sanitize = require('hast-util-sanitize');
const hast = { type: 'element', tagName: 'div', properties: {}, children: [ { type: 'element', tagName: 'script', properties: {}, children: [] } ] };
const cleanHast = sanitize(hast);
console.log(cleanHast);

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Package last updated on 25 Oct 2024

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