Benchmark: trunc-benchmark - MeasureThat.net

Script Preparation code:

function dosDecimales(n) {
  let t=n.toString();
  let regex=/(\d*.\d{0,2})/;
  return t.match(regex)[0];
}

function trunc (x, posiciones = 0) {
  var s = x.toString()
  var l = s.length
  var decimalLength = s.indexOf('.') + 1

  if (l - decimalLength <= posiciones){
    return x
  }
  // Parte decimal del número
  var isNeg  = x < 0
  var decimal =  x % 1
  var entera  = isNeg ? Math.ceil(x) : Math.floor(x)
  // Parte decimal como número entero
  // Ejemplo: parte decimal = 0.77
  // decimalFormated = 0.77 * (10^posiciones)
  // si posiciones es 2 ==> 0.77 * 100
  // si posiciones es 3 ==> 0.77 * 1000
  var decimalFormated = Math.floor(
    Math.abs(decimal) * Math.pow(10, posiciones)
  )
  // Sustraemos del número original la parte decimal
  // y le sumamos la parte decimal que hemos formateado
  var finalNum = entera + 
    ((decimalFormated / Math.pow(10, posiciones))*(isNeg ? -1 : 1))
  
  return finalNum
}

Tests:

trunc
trunc(17.97777777, 2)
dosDecimales
dosDecimales(17.97777777, 2)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
trunc
dosDecimales

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 6 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:56.0) Gecko/20100101 Firefox/56.0

Browser/OS: Firefox 56 on Windows

View result in a separate tab

Test name	Executions per second
trunc	8114411.0 Ops/sec
dosDecimales	4784664.0 Ops/sec

trunc-benchmark (version: 0)

trunc

Comparing performance of: trunc vs dosDecimales

Created: 6 years ago by: Guest

Jump to the latest result

trunc

dosDecimales

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A