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Run results for:
Empty array: Splice vs Shift (20)
Compares the speed for removing all items from the beginning of an array
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<iframe src="https://measurethat.net/Embed?id=589419" 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/133.0.0.0 Safari/537.36
Browser:
Chrome 133
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
array.splice()
53471800.0 Ops/sec
array.shift()
108417344.0 Ops/sec
Script Preparation code:
var array = [...Array(40)].map(_=>Math.ceil(Math.random()*40))
Tests:
array.splice()
array.splice(0, 20)
array.shift()
while (array.length > 20) array.shift();