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Run results for:
* 10, round vs trunc vs floor vs parseFloat vs ~~ vs 0 | vs parseInt vs parseInt, 10 loop
fastest from float to int with multiplication
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=499535" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:123.0) Gecko/20100101 Firefox/123.0
Browser:
Firefox 123
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
|0
3.9M/s
~~
3.9M/s
parseInt, 10
3.9M/s
floor
3.9M/s
trunc
3.9M/s
round
3.8M/s
parseInt
3.7M/s
parseFloat to int
12K/s
View exact numbers
Test name
Executions per second
✓
|0
3,912,830 Ops/sec
~~
3,888,678 Ops/sec
parseInt, 10
3,873,018 Ops/sec
floor
3,858,572 Ops/sec
trunc
3,857,105 Ops/sec
round
3,845,987 Ops/sec
parseInt
3,732,859 Ops/sec
parseFloat to int
11,735 Ops/sec
Script Preparation code:
var count = 1000;
Tests:
trunc
for (var i = 0; i < count; i++) { Math.trunc(12.34 * 10); Math.trunc(567.89 * 10); }
round
for (var i = 0; i < count; i++) { Math.round(12.34 * 10); Math.round(567.89 * 10); }
floor
for (var i = 0; i < count; i++) { Math.floor(12.34 * 10); Math.floor(567.89 * 10); }
parseFloat to int
for (var i = 0; i < count; i++) { parseFloat((12.34 * 10).toFixed()); parseFloat((567.89 * 10).toFixed()); }
~~
for (var i = 0; i < count; i++) { ~~(12.34 * 10); ~~(567.89 * 10); }
|0
for (var i = 0; i < count; i++) { (12.34 * 10 |0); (567.89 * 10 |0); }
parseInt
for (var i = 0; i < count; i++) { parseInt(12.34 * 10); parseInt(567.89 * 10); }
parseInt, 10
for (var i = 0; i < count; i++) { parseInt(12.34 * 10, 10); parseInt(567.89 * 10, 10); }