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Run results for:
clearing array via pop() vs shift() vs .length = 0 vs = [] (200k)
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<iframe src="https://measurethat.net/Embed?id=623252" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:146.0) Gecko/20100101 Firefox/146.0
Browser:
Firefox 146
Operating system:
Windows
Device Platform:
Desktop
Date tested:
4 months ago
Test name
Executions per second
pop
102429048.0 Ops/sec
shift
512662112.0 Ops/sec
length
25776030.0 Ops/sec
reassignment
48016672.0 Ops/sec
.splice(0)
16268123.0 Ops/sec
Script Preparation code:
var array = []; for(var i = 0; i < 200000; i++){array.push(Math.random());}
Tests:
pop
while (array.length > 0) { array.pop(); }
shift
while (array.length > 0) { array.shift(); }
length
array.length = 0
reassignment
array = []
.splice(0)
array.splice(0);