isAlphaNumeric method
Implementation
bool isAlphaNumeric() {
RegExp _numeric = RegExp(r'^[a-zA-Z0-9]+$');
return _numeric.hasMatch(this);
}
isAlphaNumeric method
bool isAlphaNumeric() {
RegExp _numeric = RegExp(r'^[a-zA-Z0-9]+$');
return _numeric.hasMatch(this);
}