Run results for: toFixed vs toPrecision vs Math.round()

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.141 Whale/3.15.136.29 Safari/537.36

Browser: Chrome 102

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
toFixed(4)	8846506.0 Ops/sec
toPrecision(4).toString()	8487484.0 Ops/sec
(Math.round(*10000)/10000).toString()	7322307.0 Ops/sec

Script Preparation code:

var someFloat = 0.123456789;

Tests:

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

Run results for: toFixed vs toPrecision vs Math.round()

toFixed(4)

toPrecision(4).toString()

(Math.round(*10000)/10000).toString()