isUnicode static method

bool isUnicode(
  1. String? str
)

Returns true if str contains any character outside the printable ASCII range (code unit above 0x7E), e.g. Vietnamese diacritics.

Implementation

static bool isUnicode(String? str) {
  if (str.isNullOrEmpty) return false;

  return str!.codeUnits.any((unit) => unit > 0x7E);
}