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Valida CNPJ - função em JavaScript
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function is_cnpj(c) { | |
var b = [6,5,4,3,2,9,8,7,6,5,4,3,2]; | |
if((c = c.replace(/[^\d]/g,"")).length != 14) | |
return false; | |
if(/0{14}/.test(c)) | |
return false; | |
for (var i = 0, n = 0; i < 12; n += c[i] * b[++i]); | |
if(c[12] != (((n %= 11) < 2) ? 0 : 11 - n)) | |
return false; | |
for (var i = 0, n = 0; i <= 12; n += c[i] * b[i++]); | |
if(c[13] != (((n %= 11) < 2) ? 0 : 11 - n)) | |
return false; | |
return true; | |
}; |
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