Run results for: createElement vs cloneNode

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 14_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0 EdgiOS/46.3.13 Mobile/15E148 Safari/605.1.15

Browser: Mobile Safari 14

Operating system: iOS 14.4.1

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
createElement	15.8 Ops/sec
cloneNode	20.8 Ops/sec

Tests:

createElement
var list = [], n = 0; while(true) { n++; list.push(document.createElement('div')); if(n===100000) break; }
cloneNode
var list = [], n = 0, node = document.createElement('div'); while(true) { n++; list.push(node.cloneNode(true)); if(n===100000) break; }

Run results for: createElement vs cloneNode

Faster way to create new dom elements before insertion

createElement

cloneNode