Benchmark: toFixed vs toPrecision vs Math.round() vs customRound()

Script Preparation code:

var someFloat = 0.123456789;
var customRound = x => (x + (x > 0 ? 0.5 : -0.5)) << 0;

Tests:

toFixed(2)
someFloat.toFixed(2);
toPrecision(2).toString()
someFloat.toPrecision(2).toString();
(Math.round(*100)/100).toString()
(Math.round(someFloat*100)/100).toString();
(Math.round(*100) * 0.01).toString()
(Math.round(someFloat*100)*0.01).toString();
customRound(*100) * 0.01.toString()
(customRound(someFloat*100)*0.01).toString();

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36 Edg/94.0.992.50

Browser/OS: Chrome 94 on Mac OS X 10.15.7

toFixed vs toPrecision vs Math.round() vs customRound() (version: 0)