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Run results for:
array[array.length - 1] vs array.at(-1) vs array[len -1]
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<iframe src="https://measurethat.net/Embed?id=558510" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Browser:
Chrome 129
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
array.at(-1)
26.9M/s
array[array.length - 1]
14.5M/s
array[len - 1]
14.5M/s
View exact numbers
Test name
Executions per second
✓
array.at(-1)
26,884,256 Ops/sec
array[array.length - 1]
14,538,164 Ops/sec
array[len - 1]
14,491,580 Ops/sec
Script Preparation code:
var array = [1,2,3];
Tests:
array[array.length - 1]
const d = array[array.length - 1];
array.at(-1)
const z = array.at(-1);
array[len - 1]
const len = array.length; const a = array[len - 1];