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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 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36
Chrome 89
Windows
Desktop
3 years ago
Test name Executions per second
toFixed(4) someFloat.toFixed(4); someFloat.t 2254490.2 Ops/sec
toPrecision(4).toString() 2269080.8 Ops/sec
(Math.round(*10000)/10000).toString() 2751918.2 Ops/sec
Math.floor fast 8065408.5 Ops/sec
Math.trunc 2541979.2 Ops/sec
Script Preparation code:
Tests:

  • toFixed(4) someFloat.toFixed(4); someFloat.t

  • toPrecision(4).toString()

  • (Math.round(*10000)/10000).toString()

  • Math.floor fast

  • Math.trunc