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Run results for:
fake-binary
Tests the efficiency between using .replace() and .split().map().join() to edit single character values in a string that only contains numbers.
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<iframe src="https://measurethat.net/Embed?id=508684" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36
Browser:
Chrome 121
Operating system:
Linux
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
Conversion
391939.2 Ops/sec
Replacement
333657.0 Ops/sec
Tests:
Conversion
function fakeBin(strNums) { return strNums.split("") .map(num => num = num < 5 ? 0 : 1) .join("") } console.log(fakeBin("123456789"))
Replacement
function fakeBin2(x) { return x.replace(/\d/g, n => "0000011111"[n]) } console.log(fakeBin2("987654321"))