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Run results for:
JS: insertBefore vs appendChild vs prepend vs insertAdjacentElement
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:132.0) Gecko/20100101 Firefox/132.0
Browser:
Firefox 132
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
one year ago
appendChild
3.6M/s
insertBefore
3.6M/s
prepend
3.4M/s
insertAdjacentElement
3.3M/s
View exact numbers
Test name
Executions per second
✓
appendChild
3,617,354 Ops/sec
insertBefore
3,590,803 Ops/sec
prepend
3,357,751 Ops/sec
insertAdjacentElement
3,261,926 Ops/sec
HTML Preparation code:
<div id="container"></div>
Script Preparation code:
var container = document.getElementById("container"); var paragraph = document.createElement("p");
Tests:
insertBefore
container.insertBefore(paragraph, null);
appendChild
container.appendChild(paragraph);
prepend
container.prepend(paragraph);
insertAdjacentElement
container.insertAdjacentElement('afterbegin', paragraph);