*<Null safety>*
bool equalsIgnoreAsciiCase (String a, String b)
bool equalsIgnoreAsciiCase(String a, String b) { if (a.length != b.length) return false; for (var i = 0; i < a.length; i++) { var aChar = a.codeUnitAt(i); var bChar = b.codeUnitAt(i); if (aChar == bChar) continue; // Quick-check for whether this may be different cases of the same letter. if (aChar ^ bChar != _asciiCaseBit) return false; // If it's possible, then check if either character is actually an ASCII // letter. var aCharLowerCase = aChar | _asciiCaseBit; if (_lowerCaseA <= aCharLowerCase && aCharLowerCase <= _lowerCaseZ) { continue; } return false; } return true; }