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Run results for:
`array.slice(-1)[0]` vs `array[array.length - 1]`
Ways to get the last item in an array
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=570045" 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.slice(-1)[0]`
6.0M/s
`array[array.length-1]`
3.6M/s
View exact numbers
Test name
Executions per second
✓
`array.slice(-1)[0]`
5,970,630 Ops/sec
`array[array.length-1]`
3,631,182 Ops/sec
Script Preparation code:
var arr = Array.from(Array(100).keys());
Tests:
`array.slice(-1)[0]`
arr.slice(-1);
`array[array.length-1]`
arr[arr.length-1];