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dartnumber-formatting

Dart - NumberFormat

Is there a way with NumberFormat to display :

  • '15' if double value is 15.00
  • '15.50' if double value is 15.50

Thanks for your help.

Solution

  • Actually, I think it's easier to go with truncateToDouble() and toStringAsFixed() and not use NumberFormat at all:

    n.toStringAsFixed(n.truncateToDouble() == n ? 0 : 2);

    So for example:

    main() {
  double n1 = 15.00;
  double n2 = 15.50;

  print(format(n1));
  print(format(n2));
}

String format(double n) {
  return n.toStringAsFixed(n.truncateToDouble() == n ? 0 : 2);
}

    Prints to console:

    15
15.50