hasWhitespace method Null safety
- {String message = "Validator.hasWhitespace"}
Returns a Validator that accepts a value containing at least one whitespace character.
Whitespace characters are as defined in: https://en.wikipedia.org/wiki/Whitespace_character
Implementation
Validator hasWhitespace({
String message = "Validator.hasWhitespace",
}) {
var regExp = RegExp(
r"[\u0009-\u000D\u0020\u0085\u00A0\u1680\u2000-\u200A\u2028\u2029\u202F\u205F\u3000]",
unicode: true,
);
return add(
(value) => regExp.hasMatch(value ?? "") ? null : message,
);
}