mahyargdz
15 lines
455 B
JavaScript
15 lines
455 B
JavaScript
module.exports = function checkNationalCode(code) {
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var L = code.length
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if (L < 8 || parseInt(code, 10) == 0) return false
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code = ('0000' + code).substr(L + 4 - 10)
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if (parseInt(code.substr(3, 6), 10) == 0) return false
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var c = parseInt(code.substr(9, 1), 10)
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var s = 0
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for (var i = 0; i < 9; i++) {
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s += parseInt(code.substr(i, 1), 10) * (10 - i)
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}
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s = s % 11;
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return (s < 2 && c == s) || (s >= 2 && c == (11 - s))
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}
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