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Run results for:
Escape HTML regex vs replace vs textNode vs Option 4
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:145.0) Gecko/20100101 Firefox/145.0
Browser:
Firefox 145
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
5 months ago
Test name
Executions per second
Text node
329.0 Ops/sec
Option node
1558.7 Ops/sec
Replace A
2748.8 Ops/sec
Replace B
249.2 Ops/sec
Replace C
118.8 Ops/sec
Script Preparation code:
window.htmlStr = `<div> <input name="test" value="test" /> <img /> </div>`;
Tests:
Text node
const escapeElement = document.createElement('span'); const escapeTextNode = document.createTextNode(''); escapeElement.append(escapeTextNode); function escape(str) { escapeTextNode.textContent = str; return escapeElement.innerHTML; } let i = 0; for (; i < 10000; i++) { escape(htmlStr); }
Option node
const option = new Option(''); function escape(str) { option.label = str; return option.label; } let i = 0; for (; i < 10000; i++) { escape(htmlStr); }
Replace A
function escape(str) { const E = [ ['&', '&'], ['<', '<'], ['>', '>'], ["'", '''], ['"', '"'], ]; return (v) => E.reduce((r, e) => str.replaceAll(e[0], e[1]), v); } let i = 0; for (; i < 10000; i++) { escape(htmlStr); }
Replace B
function escape(str) { return str.replaceAll('&', '&') .replaceAll('<', '<') .replaceAll('>', '>') .replaceAll("'", ''') .replaceAll('"', '"'); return (v) => E.reduce((r, e) => str.replaceAll(e[0], e[1]), v); } let i = 0; for (; i < 10000; i++) { escape(htmlStr); }
Replace C
function escape(str) { return ('' + str).replace(/[^\w. ]/gi, c => '&#' + c.charCodeAt(0) + ';') } let i = 0; for (; i < 10000; i++) { escape(htmlStr); }