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Run results for:
Array filter vs. for loop - with for in -cc
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Run details:
User agent:
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0
Browser:
Firefox 142
Operating system:
Ubuntu
Device Platform:
Desktop
Date tested:
8 months ago
Test name
Executions per second
Filter
39210124.0 Ops/sec
For
6036600.5 Ops/sec
For in
2499089.5 Ops/sec
Script Preparation code:
var arr = [1,2,3,4,5,6,7,8,9,0], farr;
Tests:
Filter
farr = arr.filter(function(item) { return (item>4); });
For
for (var i=0,len=arr.length;i<len;i++) { if (arr[i]<5) continue; farr.push(arr[i]); }
For in
for (var i of arr) { if (arr[i]>4) farr.push(arr[i]); }