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Run results for:
Remove from array
Remove from array
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3.1 Safari/605.1.15
Browser:
Safari 18
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Default
54511496.0 Ops/sec
Reverse
53438296.0 Ops/sec
Fix
96778408.0 Ops/sec
Script Preparation code:
var letters = ["A", "B", "C", "D", "E", "F"];
Tests:
Default
var copy = letters.slice(); var length = copy.length; for (var i = 0; i < length; i++) { if (copy[i] === "B" || copy[i] === "C") { letters.splice(letters.indexOf(copy[i]), 1); } }
Reverse
var copy = letters.slice(); var length = copy.length; for (var i = length - 1; i >= 0; i--) { if (copy[i] === "B" || copy[i] === "C") { letters.splice(i, 1); } }
Fix
var length = letters.length; for (var i = 0; i < length; i++) { if (letters[i] === "B" || letters[i] === "C") { letters.splice(i--, 1); } }