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Run results for:
at(-1) vs slice(-1)[0] vs length - 1
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<iframe src="https://measurethat.net/Embed?id=603576" 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/135.0.0.0 Safari/537.36
Browser:
Chrome 135
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
at(-1)
97301496.0 Ops/sec
length - 1
113645376.0 Ops/sec
slice(-1)[0]
39207348.0 Ops/sec
Script Preparation code:
var array = Array({ length: 10000 }, (_, i) => i);
Tests:
at(-1)
array.at(-1);
length - 1
array[array.length - 1]
slice(-1)[0]
array.slice(-1)[0]