Bump to v3.0.0.

lodash.isplainobject/index.js

@@ -0,0 +1,129 @@
+/**
+ * lodash 3.0.0 (Custom Build) <https://lodash.com/>
+ * Build: `lodash modern modularize exports="npm" -o ./`
+ * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
+ * Based on Underscore.js 1.7.0 <http://underscorejs.org/LICENSE>
+ * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license <https://lodash.com/license>
+ */
+var baseFor = require('lodash._basefor'),
+    isNative = require('lodash.isnative'),
+    keysIn = require('lodash.keysin');
+
+/** `Object#toString` result references. */
+var objectTag = '[object Object]';
+
+/**
+ * Checks if `value` is object-like.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
+ */
+function isObjectLike(value) {
+  return (value && typeof value == 'object') || false;
+}
+
+/** Used for native method references. */
+var objectProto = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
+
+/**
+ * Used to resolve the `toStringTag` of values.
+ * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.prototype.tostring)
+ * for more details.
+ */
+var objToString = objectProto.toString;
+
+/** Native method references. */
+var getPrototypeOf = isNative(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf;
+
+/**
+ * The base implementation of `_.forIn` without support for callback
+ * shorthands and `this` binding.
+ *
+ * @private
+ * @param {Object} object The object to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Object} Returns `object`.
+ */
+function baseForIn(object, iteratee) {
+  return baseFor(object, iteratee, keysIn);
+}
+
+/**
+ * A fallback implementation of `_.isPlainObject` which checks if `value`
+ * is an object created by the `Object` constructor or has a `[[Prototype]]`
+ * of `null`.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
+ */
+function shimIsPlainObject(value) {
+  var Ctor;
+
+  // Exit early for non `Object` objects.
+  if (!(isObjectLike(value) && objToString.call(value) == objectTag) ||
+      (!hasOwnProperty.call(value, 'constructor') &&
+        (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) {
+    return false;
+  }
+  // IE < 9 iterates inherited properties before own properties. If the first
+  // iterated property is an object's own property then there are no inherited
+  // enumerable properties.
+  var result;
+  // In most environments an object's own properties are iterated before
+  // its inherited properties. If the last iterated property is an object's
+  // own property then there are no inherited enumerable properties.
+  baseForIn(value, function(subValue, key) {
+    result = key;
+  });
+  return typeof result == 'undefined' || hasOwnProperty.call(value, result);
+}
+
+/**
+ * Checks if `value` is a plain object, that is, an object created by the
+ * `Object` constructor or one with a `[[Prototype]]` of `null`.
+ *
+ * **Note:** This method assumes objects created by the `Object` constructor
+ * have no inherited enumerable properties.
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
+ * @example
+ *
+ * function Foo() {
+ *   this.a = 1;
+ * }
+ *
+ * _.isPlainObject(new Foo);
+ * // => false
+ *
+ * _.isPlainObject([1, 2, 3]);
+ * // => false
+ *
+ * _.isPlainObject({ 'x': 0, 'y': 0 });
+ * // => true
+ *
+ * _.isPlainObject(Object.create(null));
+ * // => true
+ */
+var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) {
+  if (!(value && objToString.call(value) == objectTag)) {
+    return false;
+  }
+  var valueOf = value.valueOf,
+      objProto = isNative(valueOf) && (objProto = getPrototypeOf(valueOf)) && getPrototypeOf(objProto);
+
+  return objProto
+    ? (value == objProto || getPrototypeOf(value) == objProto)
+    : shimIsPlainObject(value);
+};
+
+module.exports = isPlainObject;