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May 17, 2016 17:13
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CPF and CNPJ validation (front-end)
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function validateCPF(number) { | |
var cpf = number.toString().replace(/[^0-9]/g, ''); | |
if (cpf.length != 11) { | |
return false; | |
} | |
var digitoTestado = cpf.slice(9, 11); | |
var digitoValidado = ''; | |
var sum1 = sum2 = dig1 = dig2 = 0; | |
for (var i = 0; i < 10; i++) { | |
if (i < 9) { | |
sum1 = sum1 + ( cpf.charAt(i) * (10 - i) ); | |
} | |
sum2 = sum2 + ( cpf.charAt(i) * (11 - i) ); | |
}; | |
if ( (sum1 % 11) >= 2 ) { | |
dig1 = 11 - (sum1 % 11); | |
} | |
if ( (sum2 % 11) >= 2 ) { | |
dig2 = 11 - (sum2 % 11); | |
} | |
digitoValidado = dig1.toString() + dig2.toString(); | |
if ( digitoTestado === digitoValidado ) { | |
return true; | |
} | |
return false; | |
} | |
function validateCNPJ(number) { | |
var cnpj = number.toString().replace(/[^0-9]/g, ''); | |
if (cnpj.length != 14) { | |
return false; | |
} | |
var digitoTestado = cnpj.slice(12, 14); | |
var digitoValidado = ''; | |
var sum1 = sum2 = dig1 = dig2 = 0; | |
var second_row = [6, 5, 4, 3, 2, 9, 8, 7, 6, 5, 4, 3, 2]; | |
for (var i = 0; i < 13; i++) { | |
if (i < 12) { | |
sum1 = sum1 + ( cnpj.charAt(i) * second_row[i + 1] ); | |
} | |
sum2 = sum2 + ( cnpj.charAt(i) * second_row[i] ); | |
}; | |
if ( (sum1 % 11) >= 2 ) { | |
dig1 = 11 - (sum1 % 11); | |
} | |
if ( (sum2 % 11) >= 2 ) { | |
dig2 = 11 - (sum2 % 11); | |
} | |
digitoValidado = dig1.toString() + dig2.toString(); | |
if ( digitoTestado === digitoValidado ) { | |
return true; | |
} | |
return false; | |
} |
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