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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/70.0.3538.102 Safari/537.36 Edge/18.18362
Edge 18.18362
Windows
Desktop
2 years ago
Test name Executions per second
toFixed(4) someFloat.toFixed(4); someFloat.t 19132174.0 Ops/sec
toPrecision(4).toString() 12888986.0 Ops/sec
(Math.round(*10000)/10000).toString() 1635460096.0 Ops/sec
Math.floor fast 1812327296.0 Ops/sec
Math.trunc 1598615552.0 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

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