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Run results for:
parseInt vs toFixed vs tilde vs bitwise
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=591841" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0
Browser:
Firefox 115
Operating system:
Windows 8
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
Math.round
36/s
Bitwise
35/s
Math.trunc
35/s
parseInt
35/s
Tilde
31/s
toFixed
31/s
View exact numbers
Test name
Executions per second
✓
Math.round
36 Ops/sec
Bitwise
35 Ops/sec
Math.trunc
35 Ops/sec
parseInt
35 Ops/sec
Tilde
31 Ops/sec
toFixed
31 Ops/sec
HTML Preparation code:
<div id="num"></div>
Script Preparation code:
var el = document.getElementById('num');
Tests:
parseInt
var decimal = 30.0; for (var i = 0; i < 10000; i++) { decimal += (i / 1000); el.innerHTML = parseInt(decimal, 10); }
toFixed
var decimal = 30.0; for (var i = 0; i < 10000; i++) { decimal += (i / 1000); el.innerHTML = decimal.toFixed(); }
Tilde
var decimal = 30.0; for (var i = 0; i < 10000; i++) { decimal += (i / 1000); el.innerHTML = ~~decimal; }
Bitwise
var decimal = 30.0; for (var i = 0; i < 10000; i++) { decimal += (i / 1000); el.innerHTML = decimal | 0; }
Math.round
var decimal = 30.0; for (var i = 0; i < 10000; i++) { decimal += (i / 1000); el.innerHTML = Math.round(decimal); }
Math.trunc
var decimal = 30.0; for (var i = 0; i < 10000; i++) { decimal += (i / 1000); el.innerHTML = Math.trunc(decimal); }