stdSIGN function

dynamic stdSIGN(
  1. dynamic value
)

Expression function SIGN(x): -1, 0 or 1.

Implementation

dynamic stdSIGN(dynamic value) {
  final e = varToDouble(value);
  if (e > 0) return 1;
  if (e < 0) return -1;
  return 0;
}