subtractStrMinZero static method

String subtractStrMinZero(
  1. String? a,
  2. String? b
)

减 a-b,最小值为0 Subtracts with minimum result of zero Returns "0" if result would be negative

Implementation

static String subtractStrMinZero(String? a, String? b) {
  final res = _safeParse(a) - _safeParse(b);
  return res < Decimal.zero ? '0' : res.toString();
}