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Run results for:
toFixed vs toPrecision vs Math.round() vs Math.floorfast
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<iframe src="https://measurethat.net/Embed?id=556838" 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/128.0.0.0 Safari/537.36
Browser:
Chrome 128
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
Math.floor fast
36.7M/s
(Math.round(*10000)/10000).toString()
13.7M/s
toPrecision(4).toString()
12.9M/s
toFixed(4)
12.5M/s
View exact numbers
Test name
Executions per second
✓
Math.floor fast
36,683,112 Ops/sec
(Math.round(*10000)/10000).toString()
13,676,822 Ops/sec
toPrecision(4).toString()
12,932,183 Ops/sec
toFixed(4)
12,524,611 Ops/sec
Script Preparation code:
var someFloat = 0.123456789;
Tests:
toFixed(4)
someFloat.toFixed(4);
toPrecision(4).toString()
someFloat.toPrecision(4);
(Math.round(*10000)/10000).toString()
(Math.round(someFloat*10000)/10000);
Math.floor fast
~~(someFloat * 10000) / 10000;