validator library

Functions

xValidator(List<TextXValidationRule> rules, {OnFailureCallBack? onFailureCallBack}) → String? Function(String?)

Builds a String? Function(String?) that runs rules in order against the field value and returns the first failure message, or null when every rule passes.

Typedefs

OnFailureCallBack = void Function(String? inputCallBack, List<TextXValidationRule> rules, TextXValidationRule failedRule)