Run results for: CreateElement vs DOM Parser

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_0_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0.1 Mobile/22A3370 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.0.1

Device Platform: Mobile

Date tested: 5 days ago

Test name	Executions per second
CreateElement	552632128.0 Ops/sec
CreateHTMLDocument	475337248.0 Ops/sec
DOMParser	536423488.0 Ops/sec

Script Preparation code:

var testString = '<body>' + Array(100001).join('<div>x</div>') + '</body>';

Tests:

CreateElement
function test_innerHTML() { var b = document.createElement('body'); b.innerHTML = testString; return b; }
CreateHTMLDocument
function test_createHTMLDocument() { var d = document.implementation.createHTMLDocument(''); d.body.innerHTML = testString; return d.body; }
DOMParser
function test_DOMParser() { return (new DOMParser).parseFromString(testString, 'text/html').body; }

Run results for: CreateElement vs DOM Parser

CreateElement

CreateHTMLDocument

DOMParser