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 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Firefox 129
Mac OS X 10.15
Desktop
one year ago
Math.trunc
1275.0M/s
(Math.round(*10000)/10000).toString()
1253.0M/s
Math.floor fast
959.4M/s
toFixed(4) someFloat.toFixed(4); someFloat.t
18.1M/s
toPrecision(4).toString()
12.4M/s
View exact numbers
Test name Executions per second
✓ Math.trunc 1,275,020,160 Ops/sec
(Math.round(*10000)/10000).toString() 1,252,979,200 Ops/sec
Math.floor fast 959,444,800 Ops/sec
toFixed(4) someFloat.toFixed(4); someFloat.t 18,130,968 Ops/sec
toPrecision(4).toString() 12,420,119 Ops/sec
Script Preparation code:
Tests: