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

Comparing performance of: toFixed(4) vs toPrecision(4).toString() vs (Math.round(*10000)/10000).toString() vs Math.floor fast vs the new Math.trunc

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Run details:
Mozilla/5.0 (X11; Linux x86_64; rv:121.0) Gecko/20100101 Firefox/121.0
Firefox 121
Linux
Desktop
2 years ago
Math.trunc
712.1M/s
(Math.round(*10000)/10000).toString()
708.3M/s
Math.floor fast
703.6M/s
toFixed(4) someFloat.toFixed(4); someFloat.t
16.7M/s
toPrecision(4).toString()
12.5M/s
View exact numbers
Test name Executions per second
✓ Math.trunc 712,067,712 Ops/sec
(Math.round(*10000)/10000).toString() 708,275,328 Ops/sec
Math.floor fast 703,604,480 Ops/sec
toFixed(4) someFloat.toFixed(4); someFloat.t 16,680,944 Ops/sec
toPrecision(4).toString() 12,545,883 Ops/sec
Script Preparation code:
Tests: