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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_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.1 Safari/605.1.15
Browser:
Safari 17
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
appendChild
4.7M/s
insertBefore
4.7M/s
insertAdjacentElement
4.5M/s
prepend
3.8M/s
View exact numbers
Test name
Executions per second
✓
appendChild
4,707,772 Ops/sec
insertBefore
4,667,139 Ops/sec
insertAdjacentElement
4,493,045 Ops/sec
prepend
3,824,582 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);