validate abstract method
This method checks if a given CPF is valid and returns true or false
The optional state
argument refers to the location of the CPF
to be generated.
Usage:
final cpf = CPFUtil();
// This will validate a given CPF (Must be a String)
print(cpf.validate('352.753.028-27')); // -> true
You can check the state of a CPF by looking at the last number before the two verifiers digits.
The state is not checked if ommited
All the information about the validation and the states number can be obtained here:
https://pt.wikipedia.org/wiki/Cadastro_de_Pessoas_F%C3%ADsicas
Implementation
bool validate(String cpf, {int? state});