isNonNegativeLength static method

bool isNonNegativeLength(
  1. String? value
)

Implementation

static bool isNonNegativeLength(String? value) {
  if (value == null) return false;
  if (value == ZERO) return true;
  final parsed = _tryParseLengthToken(value);
  if (parsed == null) return false;
  // Negative zero is considered to be equal to zero.
  if (parsed.isNegative && !parsed.isAllZero) return false;
  return true;
}