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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=513191" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.3.1 Safari/605.1.15
Browser:
Safari 17
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
trunc
10013090.0 Ops/sec
round
10105717.0 Ops/sec
floor
10178608.0 Ops/sec
parseFloat to int
4469373.5 Ops/sec
~~
503915424.0 Ops/sec
0 |
488659104.0 Ops/sec
parseInt
10531601.0 Ops/sec
parseInt, 10
10494377.0 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);