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Run results for:
Getting last element of array (index/slice/at/pop)
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<iframe src="https://measurethat.net/Embed?id=614253" 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/18.3 Safari/605.1.15
Browser:
Safari 18
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
at
2.9M/s
length
2.9M/s
pop
1.5M/s
slice
80K/s
View exact numbers
Test name
Executions per second
✓
at
2,940,805 Ops/sec
length
2,936,909 Ops/sec
pop
1,540,396 Ops/sec
slice
80,311 Ops/sec
Script Preparation code:
var arr = []; for (let i = 0; i < 1000000; i++) { arr.push(i); }
Tests:
slice
for (let i = 0; i < 1000; i++) { const v = arr.slice(-1)[0]; }
length
for (let i = 0; i < 1000; i++) { const v = arr[arr.length - 1]; }
at
for (let i = 0; i < 1000; i++) { const v = arr.at(-1); }
pop
for (let i = 0; i < 1000; i++) { const v = arr.pop(); }