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Run results for:
Empty array: Splice vs Shift
Compares the speed for removing all items from the beginning of an array
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<iframe src="https://measurethat.net/Embed?id=568915" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:132.0) Gecko/20100101 Firefox/132.0
Browser:
Firefox 132
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
array.shift()
651.7M/s
array.splice()
11.9M/s
View exact numbers
Test name
Executions per second
✓
array.shift()
651,749,312 Ops/sec
array.splice()
11,886,625 Ops/sec
Script Preparation code:
var array = [1, 2, 3, 4, 5, 6, 7, 8]
Tests:
array.splice()
array.splice(0)
array.shift()
while (array.length > 0) array.shift();