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Run results for:
.at vs length -1
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=571315" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Browser:
Chrome 131
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
array.at(-1)
48.4M/s
array[array.length - 1]
46.2M/s
View exact numbers
Test name
Executions per second
✓
array.at(-1)
48,371,060 Ops/sec
array[array.length - 1]
46,202,888 Ops/sec
Script Preparation code:
var array = Array.from({length: 100}).map(Math.random);
Tests:
array[array.length - 1]
var d = array[array.length - 1];
array.at(-1)
var z = array.at(-1);