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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=493591" width="100%" height="500px"></iframe>
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
Test name
Executions per second
array[array.length - 1]
17258852.0 Ops/sec
array.at(-1)
31813750.0 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);