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- /**
- * lodash 3.10.1 (Custom Build) <https://lodash.com/>
- * Build: `lodash modularize modern exports="es" include="clone,extend,isPlainObject,isObject,isArray,last,isEqual" --development --output src/lib/lodash`
- * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- * Available under MIT license <https://lodash.com/license>
- */
- import baseForIn from '../internal/baseForIn';
- import isArguments from './isArguments';
- import isObjectLike from '../internal/isObjectLike';
- /** `Object#toString` result references. */
- var objectTag = '[object Object]';
- /** 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`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
- * of values.
- */
- var objToString = objectProto.toString;
- /**
- * 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
- */
- function isPlainObject(value) {
- var Ctor;
- // Exit early for non `Object` objects.
- if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) ||
- (!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 result === undefined || hasOwnProperty.call(value, result);
- }
- export default isPlainObject;
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