Benchmark: roundDecimal() with Math.pow vs. Unary and toPrecision()

Script Preparation code:

function roundDecimalPow(value, decimals) {
  const factor = Math.pow(10, decimals);
  return Math.round(value * factor) / factor;
}

function roundDecimalUnaryToPrecision(value, decimals) {
  return +value.toPrecision(decimals);
}

function roundDecimalParseFloatToPrecision(value, decimals) {
  return parseFloat(value.toPrecision(decimals));
}

Tests:

roundDecimalPow()
roundDecimalPow(Math.random(), 2)
roundDecimalUnaryToPrecision()
roundDecimalUnaryToPrecision(Math.random(), 2)
roundDecimalParseFloatToPrecision()
roundDecimalParseFloatToPrecision(Math.random(), 2)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
roundDecimalPow()
roundDecimalUnaryToPrecision()
roundDecimalParseFloatToPrecision()

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.128 Safari/537.36

Browser/OS: Chrome 89 on Mac OS X 11.2.3

View result in a separate tab

Test name	Executions per second
roundDecimalPow()	2222264.0 Ops/sec
roundDecimalUnaryToPrecision()	2032386.0 Ops/sec
roundDecimalParseFloatToPrecision()	1725404.0 Ops/sec

roundDecimal() with Math.pow vs. Unary and toPrecision() (version: 0)

Comparing performance of: roundDecimalPow() vs roundDecimalUnaryToPrecision() vs roundDecimalParseFloatToPrecision()

Created: 3 years ago by: Guest

Jump to the latest result

roundDecimalPow()

roundDecimalUnaryToPrecision()

roundDecimalParseFloatToPrecision()

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A