1 files changed, 29 insertions, 0 deletions
diff --git a/library/moment/src/lib/units/aliases.js b/library/moment/src/lib/units/aliases.js
new file mode 100644
index 000000000..4ad513384
--- /dev/null
+++ b/library/moment/src/lib/units/aliases.js
@@ -0,0 +1,29 @@
+import hasOwnProp from '../utils/has-own-prop';
+
+var aliases = {};
+
+export function addUnitAlias (unit, shorthand) {
+    var lowerCase = unit.toLowerCase();
+    aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
+}
+
+export function normalizeUnits(units) {
+    return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined;
+}
+
+export function normalizeObjectUnits(inputObject) {
+    var normalizedInput = {},
+        normalizedProp,
+        prop;
+
+    for (prop in inputObject) {
+        if (hasOwnProp(inputObject, prop)) {
+            normalizedProp = normalizeUnits(prop);
+            if (normalizedProp) {
+                normalizedInput[normalizedProp] = inputObject[prop];
+            }
+        }
+    }
+
+    return normalizedInput;
+}