react app

react-app/node_modules/lodash/object/assign.js

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+var assignWith = require('../internal/assignWith'),
+    baseAssign = require('../internal/baseAssign'),
+    createAssigner = require('../internal/createAssigner');
+
+/**
+ * Assigns own enumerable properties of source object(s) to the destination
+ * object. Subsequent sources overwrite property assignments of previous sources.
+ * If `customizer` is provided it's invoked to produce the assigned values.
+ * The `customizer` is bound to `thisArg` and invoked with five arguments:
+ * (objectValue, sourceValue, key, object, source).
+ *
+ * **Note:** This method mutates `object` and is based on
+ * [`Object.assign`](http://ecma-international.org/ecma-262/6.0/#sec-object.assign).
+ *
+ * @static
+ * @memberOf _
+ * @alias extend
+ * @category Object
+ * @param {Object} object The destination object.
+ * @param {...Object} [sources] The source objects.
+ * @param {Function} [customizer] The function to customize assigned values.
+ * @param {*} [thisArg] The `this` binding of `customizer`.
+ * @returns {Object} Returns `object`.
+ * @example
+ *
+ * _.assign({ 'user': 'barney' }, { 'age': 40 }, { 'user': 'fred' });
+ * // => { 'user': 'fred', 'age': 40 }
+ *
+ * // using a customizer callback
+ * var defaults = _.partialRight(_.assign, function(value, other) {
+ *   return _.isUndefined(value) ? other : value;
+ * });
+ *
+ * defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
+ * // => { 'user': 'barney', 'age': 36 }
+ */
+var assign = createAssigner(function(object, source, customizer) {
+  return customizer
+    ? assignWith(object, source, customizer)
+    : baseAssign(object, source);
+});
+
+module.exports = assign;