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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36

Browser: Chrome 138

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

(Math.round(*10000)/10000)

198.1M/s

toPrecision(4).toString()

15.6M/s

toFixed(4)

11.5M/s

View exact numbers

Script Preparation code:

var someFloat = 0.123456789;

Tests:

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