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Run results for:
Array.at(-1) vs. Array.length - 1
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Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=613410" 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/138.0.0.0 Safari/537.36
Browser:
Chrome 138
Operating system:
Windows
Device Platform:
Desktop
Date tested:
9 months ago
Test name
Executions per second
.at(-1)
160433888.0 Ops/sec
length - 1
153269696.0 Ops/sec
const LEN - 1
163070768.0 Ops/sec
Script Preparation code:
var LEN = 3000; var arr = new Array(LEN).fill(0).map((_, i) => i);
Tests:
.at(-1)
var other = arr.at(-1);
length - 1
var other = arr[arr.length - 1]
const LEN - 1
var other = arr[LEN - 1]