validation_assistant

Description:

validation assistant

Very simple and light form validation assistant. #
Use your own validation functions with great convenience. #
Features #

Very simple.
Very light.
Zero dependencies.

Getting started #
flutter pub get validation_assistant
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or
dependencies:
validation_assistant: 1.1.2
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Usage #

final validationAssistant = ValidationAssistant();

...

// with default messages
TextFormField(
...
validator: validationAssistant
..required()
..maxLength(10)
..regExp(r'^\d+$')
)

// with custom messages.
TextFormField(
...
validator: validationAssistant
..required('custom error message')
..maxLength(10, 'custom error message')
..regExp(r'^\d+$', 'custom error message')
)
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You can add your own function to check.
final validationAssistant = ValidationAssistant();

...

final String? customValidationFunction(String? value) {
if (value < 5) {
return 'custom error message';
}
return null;
}

...

TextFormField(
...
validator: validationAssistant
..required('custom error message')
..add(customValidationFunction)
)
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