Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.16; rv:86.0) Gecko/20100101 Firefox/86.0
Firefox 86
Mac OS X 10.16
Desktop
3 years ago
Test name Executions per second
toFixed(4) someFloat.toFixed(4); someFloat.t 13438080.0 Ops/sec
toPrecision(4).toString() 12362370.0 Ops/sec
(Math.round(*10000)/10000).toString() 744549000.0 Ops/sec
Math.floor fast 590464400.0 Ops/sec
Math.trunc 741779700.0 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