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flutter_credit_card_detector package
documentation
flutter_credit_card_detector.dart
ControllerBase
validateCVV method
validateCVV method
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validateCVV
method
String
?
validateCVV
(
)
Implementation
String? validateCVV() { if (cvv.length < 3) { return textRequired; } return null; }
flutter_credit_card_detector package
documentation
flutter_credit_card_detector
ControllerBase
validateCVV method
ControllerBase class