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node_modules/moment/src/lib/units/aliases.js

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+import hasOwnProp from '../utils/has-own-prop';
+
+var aliases = {
+    D: 'date',
+    dates: 'date',
+    date: 'date',
+    d: 'day',
+    days: 'day',
+    day: 'day',
+    e: 'weekday',
+    weekdays: 'weekday',
+    weekday: 'weekday',
+    E: 'isoWeekday',
+    isoweekdays: 'isoWeekday',
+    isoweekday: 'isoWeekday',
+    DDD: 'dayOfYear',
+    dayofyears: 'dayOfYear',
+    dayofyear: 'dayOfYear',
+    h: 'hour',
+    hours: 'hour',
+    hour: 'hour',
+    ms: 'millisecond',
+    milliseconds: 'millisecond',
+    millisecond: 'millisecond',
+    m: 'minute',
+    minutes: 'minute',
+    minute: 'minute',
+    M: 'month',
+    months: 'month',
+    month: 'month',
+    Q: 'quarter',
+    quarters: 'quarter',
+    quarter: 'quarter',
+    s: 'second',
+    seconds: 'second',
+    second: 'second',
+    gg: 'weekYear',
+    weekyears: 'weekYear',
+    weekyear: 'weekYear',
+    GG: 'isoWeekYear',
+    isoweekyears: 'isoWeekYear',
+    isoweekyear: 'isoWeekYear',
+    w: 'week',
+    weeks: 'week',
+    week: 'week',
+    W: 'isoWeek',
+    isoweeks: 'isoWeek',
+    isoweek: 'isoWeek',
+    y: 'year',
+    years: 'year',
+    year: 'year',
+};
+
+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;
+}