[ This description is mirrored from README.md at github.com/LostInBrittany/granite-validator-mixin on 2019-05-22 ]

GraniteElements.ValidatorMixin

A mixin to implement a custom input or form validator

Doc & demo

https://lostinbrittany.github.io/granite-validator-mixin

GraniteElements.ValidatorMixin

Use GraniteElements.ValidatorMixin to implement a custom input/form validator. Element instances implementing this behavior will be registered for use in elements that implement Polymer.IronValidatableBehavior.