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

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:63.0) Gecko/20100101 Firefox/63.0

Browser: Firefox 63

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 6 years ago

Test name	Executions per second
toFixed(4)	3645749.2 Ops/sec
toPrecision(4).toString()	6942318.5 Ops/sec
(Math.round(*10000)/10000).toString()	81852080.0 Ops/sec

Script Preparation code:

var someFloat = 0.123456789;

Tests:

toFixed(4)
Number(someFloat.toFixed(4));
toPrecision(4).toString()
someFloat.toPrecision(4)
(Math.round(*10000)/10000).toString()
(Math.round(someFloat*10000)/10000)

;