1 files changed, 16 insertions, 0 deletions
diff --git a/library/moment/src/lib/utils/compare-arrays.js b/library/moment/src/lib/utils/compare-arrays.js
new file mode 100644
index 000000000..2eb274bef
--- /dev/null
+++ b/library/moment/src/lib/utils/compare-arrays.js
@@ -0,0 +1,16 @@
+import toInt from './to-int';
+
+// compare two arrays, return the number of differences
+export default function compareArrays(array1, array2, dontConvert) {
+    var len = Math.min(array1.length, array2.length),
+        lengthDiff = Math.abs(array1.length - array2.length),
+        diffs = 0,
+        i;
+    for (i = 0; i < len; i++) {
+        if ((dontConvert && array1[i] !== array2[i]) ||
+            (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
+            diffs++;
+        }
+    }
+    return diffs + lengthDiff;
+}