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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/94.0.4606.71 Safari/537.36
Chrome 94
Windows
Desktop
2 years ago
Test name Executions per second
toFixed(4) someFloat.toFixed(4); someFloat.t 2695098.0 Ops/sec
toPrecision(4).toString() 2956427.0 Ops/sec
(Math.round(*10000)/10000).toString() 3421394.0 Ops/sec
Math.floor fast 8900081.0 Ops/sec
Math.trunc 3042736.0 Ops/sec
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Script Preparation code:
Tests:

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

  • toPrecision(4).toString()

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

  • Math.floor fast

  • Math.trunc