Created
September 3, 2020 22:21
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Mascara e Validador para CPF
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| function cpfMask(value) { | |
| return value | |
| .replace(/\D/g, "") | |
| .replace(/(\d{3})(\d)/, "$1.$2") | |
| .replace(/(\d{3})(\d)/, "$1.$2") | |
| .replace(/(\d{3})(\d{1,2})/, "$1-$2") | |
| .replace(/(-\d{2})\d+?$/, "$1"); | |
| }; | |
| // EXEMPLO | |
| // const mask = cpfMask("12345678912"); | |
| // console.log(mask) | |
| // SAÍDA: "123.456.789-12" | |
| function validaCPF(value) { | |
| if (typeof value !== "string") return false; | |
| const cpf = value.replace(/[^\d]+/g, ""); //remove tudo exceto numeros | |
| //testa os erros mais comuns | |
| if ( | |
| !cpf || | |
| cpf.length !== 11 || | |
| cpf == "00000000000" || | |
| cpf == "11111111111" || | |
| cpf == "22222222222" || | |
| cpf == "33333333333" || | |
| cpf == "44444444444" || | |
| cpf == "55555555555" || | |
| cpf == "66666666666" || | |
| cpf == "77777777777" || | |
| cpf == "88888888888" || | |
| cpf == "99999999999" | |
| ) | |
| return false; | |
| let soma = 0; | |
| let resto; | |
| for (i = 1; i <= 9; i++) soma += parseInt(cpf.substring(i - 1, i)) * (11 - i); | |
| resto = (soma * 10) % 11; | |
| if (resto == 10 || resto == 11) resto = 0; | |
| if (resto != parseInt(cpf.substring(9, 10))) return false; | |
| soma = 0; | |
| for (i = 1; i <= 10; i++) | |
| soma += parseInt(cpf.substring(i - 1, i)) * (12 - i); | |
| resto = (soma * 10) % 11; | |
| if (resto == 10 || resto == 11) resto = 0; | |
| if (resto != parseInt(cpf.substring(10, 11))) return false; | |
| return true; | |
| }; | |
| // EXEMPLO | |
| // if (validaCPF(cpfValue)) | |
| // console.log("cpf válido"); | |
| // else | |
| // console.log("cpf inválido"); |
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