MeasureThat.net

Run results for: createElement vs cloneNode

Faster way to create new complex dom elements

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:104.0) Gecko/20100101 Firefox/104.0
Firefox 104
Mac OS X 10.15
Desktop
2 years ago
Test name Executions per second
createElement 9.5 Ops/sec
cloneNode 22.1 Ops/sec
Tests:

  • createElement

    AخA
     
    var list = [],
        n = 0;
    while(true) {
        n++;
        list.push(document.createElement('div'));
        list[list.length-1].appendChild(document.createElement('div'));
        list[list.length-1].appendChild(document.createElement('div'));
        if(n===100000) 
            break;
    }

  • cloneNode

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