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Run results for:
Slice vs Splice vs Shift 231
Compares the speed for removing 2 items from the beginning of an array
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<iframe src="https://measurethat.net/Embed?id=593536" 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/134.0.0.0 Safari/537.36
Browser:
Chrome 134
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
array.shift()
103.1M/s
array.splice()
54.1M/s
array.slice()
11.1M/s
View exact numbers
Test name
Executions per second
✓
array.shift()
103,068,936 Ops/sec
array.splice()
54,110,036 Ops/sec
array.slice()
11,144,529 Ops/sec
Script Preparation code:
var array = [1, 2, 3, 4, 5, 6, 7, 8] var itemsToRemove = 1
Tests:
array.slice()
array = array.slice(1)
array.splice()
array.splice(0, itemsToRemove)
array.shift()
array.shift()