toPrecision method

double toPrecision(
  1. int fractionDigits
)

Num with specific fraction digits

Implementation

double toPrecision(int fractionDigits) {
  if (isNullOrZero) {
    return -1.0;
  } else {
    var mod = pow(10, fractionDigits.toDouble()).toDouble();
    return ((this * mod).round().toDouble() / mod);
  }
}