Input Validator provides ready-made Angular ValidatorFn functions for common form rules. Use these validators with FormControl, Validators.compose, NgStarter ngs-form-field, and ngs-error.
The current preset validators focus on payment fields: creditCardNumberValidator(), expiryDateValidator(), and creditCardCvvValidator(). They pair naturally with the credit card masks from Input Mask, but they do not format values themselves.
Do not use Input Validator as a UI component, input mask, replacement for Angular built-in validators, backend validation, payment processor validation, or security/compliance layer. Use it as a client-side helper for common reusable validation rules.