29 lines
632 B
JavaScript
29 lines
632 B
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.mod10 = mod10;
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exports.mod11 = mod11;
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function mod10(number) {
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var sum = 0;
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for (var i = 0; i < number.length; i++) {
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var n = parseInt(number[i]);
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if ((i + number.length) % 2 === 0) {
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sum += n;
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} else {
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sum += n * 2 % 10 + Math.floor(n * 2 / 10);
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}
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}
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return (10 - sum % 10) % 10;
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}
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function mod11(number) {
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var sum = 0;
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var weights = [2, 3, 4, 5, 6, 7];
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for (var i = 0; i < number.length; i++) {
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var n = parseInt(number[number.length - 1 - i]);
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sum += weights[i % weights.length] * n;
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}
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return (11 - sum % 11) % 11;
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} |