Run results for: toFixed vs toPrecision vs Math.round() vs ~~(someFloat * 10000) / 10000

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
Chrome 124
Mac OS X 10.15.7
Desktop
one year ago
~~(someFloat * 10000) / 10000
12.8M/s
toPrecision(4).toString()
4.6M/s
(Math.round(*10000)/10000).toString()
4.3M/s
toFixed(4)
3.6M/s
View exact numbers
Test name Executions per second
✓ ~~(someFloat * 10000) / 10000 12,792,228 Ops/sec
toPrecision(4).toString() 4,563,444 Ops/sec
(Math.round(*10000)/10000).toString() 4,327,884 Ops/sec
toFixed(4) 3,565,014 Ops/sec
Script Preparation code:
Tests: