Run results for: createElement("span") vs cloneNode()

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.127 Safari/537.36

Browser: Chrome 100

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
createElement("span")	5.3 Ops/sec
cloneNode()	24.0 Ops/sec

Tests:

createElement("span")
var list = [], n = 0; while(true) { n++; var span = document.createElement("span"); span.className = "random class name"; span.style.all = "unset"; list.push(span); if(n===100000) break; }
cloneNode()
var list = [], n = 0, node = document.createElement("span"); node.className = "random class name"; node.style.all = "unset"; while(true) { n++; var span = node.cloneNode(); list.push(span); if(n===100000) break; }