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Run results for:
* 10, round vs trunc vs floor vs parseFloat vs ~~ vs 0 | vs parseInt vs parseInt, 10
fastest from float to int with multiplication
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<iframe src="https://measurethat.net/Embed?id=504270" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36
Browser:
Chrome 121
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
~~
180.5M/s
0 |
174.8M/s
round
8.7M/s
trunc
8.6M/s
floor
8.6M/s
parseInt, 10
8.6M/s
parseInt
8.5M/s
parseFloat to int
3.3M/s
View exact numbers
Test name
Executions per second
✓
~~
180,458,304 Ops/sec
0 |
174,765,968 Ops/sec
round
8,677,476 Ops/sec
trunc
8,609,171 Ops/sec
floor
8,583,646 Ops/sec
parseInt, 10
8,565,744 Ops/sec
parseInt
8,471,238 Ops/sec
parseFloat to int
3,347,521 Ops/sec
Tests:
trunc
const x = Math.trunc(12.34 * 10); const y = Math.trunc(567.89 * 10);
round
const x = Math.round(12.34 * 10); const y = Math.round(567.89 * 10);
floor
const x = Math.floor(12.34 * 10); const y = Math.floor(567.89 * 10);
parseFloat to int
const x = parseFloat((12.34 * 10).toFixed()); const y = parseFloat((567.89 * 10).toFixed());
~~
const x = ~~(12.34 * 10); const y = ~~(567.89 * 10);
0 |
const x = (0 | 12.34 * 10); const y = (0 | 567.89 * 10);
parseInt
const x = parseInt(12.34 * 10); const y = parseInt(567.89 * 10);
parseInt, 10
const x = parseInt(12.34 * 10, 10); const y = parseInt(567.89 * 10, 10);