Barcode Generation

node_modules/jsbarcode/bin/barcodes/MSI/checksums.js

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