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diff --git a/src/node_modules/validator/es/lib/isEAN.js b/src/node_modules/validator/es/lib/isEAN.js
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+/**
+ * The most commonly used EAN standard is
+ * the thirteen-digit EAN-13, while the
+ * less commonly used 8-digit EAN-8 barcode was
+ * introduced for use on small packages.
+ * EAN consists of:
+ * GS1 prefix, manufacturer code, product code and check digit
+ * Reference: https://en.wikipedia.org/wiki/International_Article_Number
+ */
+import assertString from './util/assertString';
+/**
+ * Define EAN Lenghts; 8 for EAN-8; 13 for EAN-13
+ * and Regular Expression for valid EANs (EAN-8, EAN-13),
+ * with exact numberic matching of 8 or 13 digits [0-9]
+ */
+
+var LENGTH_EAN_8 = 8;
+var validEanRegex = /^(\d{8}|\d{13})$/;
+/**
+ * Get position weight given:
+ * EAN length and digit index/position
+ *
+ * @param {number} length
+ * @param {number} index
+ * @return {number}
+ */
+
+function getPositionWeightThroughLengthAndIndex(length, index) {
+  if (length === LENGTH_EAN_8) {
+    return index % 2 === 0 ? 3 : 1;
+  }
+
+  return index % 2 === 0 ? 1 : 3;
+}
+/**
+ * Calculate EAN Check Digit
+ * Reference: https://en.wikipedia.org/wiki/International_Article_Number#Calculation_of_checksum_digit
+ *
+ * @param {string} ean
+ * @return {number}
+ */
+
+
+function calculateCheckDigit(ean) {
+  var checksum = ean.slice(0, -1).split('').map(function (_char, index) {
+    return Number(_char) * getPositionWeightThroughLengthAndIndex(ean.length, index);
+  }).reduce(function (acc, partialSum) {
+    return acc + partialSum;
+  }, 0);
+  var remainder = 10 - checksum % 10;
+  return remainder < 10 ? remainder : 0;
+}
+/**
+ * Check if string is valid EAN:
+ * Matches EAN-8/EAN-13 regex
+ * Has valid check digit.
+ *
+ * @param {string} str
+ * @return {boolean}
+ */
+
+
+export default function isEAN(str) {
+  assertString(str);
+  var actualCheckDigit = Number(str.slice(-1));
+  return validEanRegex.test(str) && actualCheckDigit === calculateCheckDigit(str);
+}
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