Run results for: toFixed vs toPrecision vs Math.round() vs Math.floorfast - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:98.0) Gecko/20100101 Firefox/98.0

Browser: Firefox 98

Operating system: Fedora

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
toFixed(4)	16288750.0 Ops/sec
toPrecision(4).toString()	11489080.0 Ops/sec
(Math.round(*10000)/10000).toString()	1605613000.0 Ops/sec
Math.floor fast	1750998000.0 Ops/sec

Website performance monitoring

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;