A validator that succeeds only if the provided string is blank (i.e. empty or whitespace-only).
Note that java.lang.String.trim is used to eliminate whitespace.
Linear Supertypes
NullSafeValidator[String], BaseValidator[String], Validator[String], (String) ⇒ Result, AnyRef, Any
A validator that succeeds only if the provided string is blank (i.e. empty or whitespace-only). Note that java.lang.String.trim is used to eliminate whitespace.