Run results for: parseFromString vs cloneNode

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.5 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 26

Operating system: iOS 18.7

Device Platform: Mobile

Date tested: 4 months ago

Benchmark engine: Benchmark.js

cloneNode

255/s

createElement

91/s

View exact numbers

Test name	Executions per second
✓ cloneNode	255 Ops/sec
createElement	91 Ops/sec

Script Preparation code:

var markup = '<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1"><g class="joint-port"/></svg>';

Tests:

createElement
var list = [], n = 0; while(true) { n++; list.push(new DOMParser().parseFromString(markup, 'text/xml')); if(n===1000) break; }
cloneNode
var list = [], n = 0, node = new DOMParser().parseFromString(markup, 'text/xml'); while(true) { n++; list.push(node.cloneNode(true)); if(n===1000) break; }