Bump to v3.0.0.

object/mapValues.js

@@ -0,0 +1,50 @@
+import baseCallback from '../internal/baseCallback';
+import baseForOwn from '../internal/baseForOwn';
+
+/**
+ * Creates an object with the same keys as `object` and values generated by
+ * running each own enumerable property of `object` through `iteratee`. The
+ * iteratee function is bound to `thisArg` and invoked with three arguments;
+ * (value, key, object).
+ *
+ * If a property name is provided for `iteratee` the created "_.property"
+ * style callback returns the property value of the given element.
+ *
+ * If an object is provided for `iteratee` the created "_.matches" style
+ * callback returns `true` for elements that have the properties of the given
+ * object, else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Object
+ * @param {Object} object The object to iterate over.
+ * @param {Function|Object|string} [iteratee=_.identity] The function invoked
+ *  per iteration. If a property name or object is provided it is used to
+ *  create a "_.property" or "_.matches" style callback respectively.
+ * @param {*} [thisArg] The `this` binding of `iteratee`.
+ * @returns {Object} Returns the new mapped object.
+ * @example
+ *
+ * _.mapValues({ 'a': 1, 'b': 2, 'c': 3} , function(n) { return n * 3; });
+ * // => { 'a': 3, 'b': 6, 'c': 9 }
+ *
+ * var users = {
+ *   'fred':    { 'user': 'fred',    'age': 40 },
+ *   'pebbles': { 'user': 'pebbles', 'age': 1 }
+ * };
+ *
+ * // using the "_.property" callback shorthand
+ * _.mapValues(users, 'age');
+ * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
+ */
+function mapValues(object, iteratee, thisArg) {
+  var result = {};
+  iteratee = baseCallback(iteratee, thisArg, 3);
+
+  baseForOwn(object, function(value, key, object) {
+    result[key] = iteratee(value, key, object);
+  });
+  return result;
+}
+
+export default mapValues;