How do you round a number to N decimal places

Support
16

Take a look for this method, in my case it works:

fun Double.roundTo(numFractionDigits: Int): Double {
  val factor = 10.0.pow(numFractionDigits.toDouble())
  return (this * factor).roundToInt() / factor
}

i borrow this from: java - Round Double to 1 decimal place kotlin: from 0.044999 to 0.1 - Stack Overflow

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