core library Null safety

The package's core validators.

Classes

Len
Length-related constraints.
Match
Constrains input data values to a certain text pattern.
Pair
A pair of validators.
Req
Validator for mandatory input data.
ReqLen
Convenient validator for required fields with length (number of items) constraints.
ReqMatch
Convenient validator for required fields whose constraints regard to text pattern.
Rules<T>
Multiple rules applied to input data.
ToValObj
Transforms an input value of type 'Object?' into a more suitable type.
Trim
Trims input data.