lodash/lodash.has/index.js

/**
 * 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>
 */

/** Used for native method references. */
var objectProto = Object.prototype;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/**
 * Checks if `key` exists as a direct property of `object` instead of an
 * inherited property.
 *
 * @static
 * @memberOf _
 * @category Object
 * @param {Object} object The object to inspect.
 * @param {string} key The key to check.
 * @returns {boolean} Returns `true` if `key` is a direct property, else `false`.
 * @example
 *
 * var object = { 'a': 1, 'b': 2, 'c': 3 };
 *
 * _.has(object, 'b');
 * // => true
 */
function has(object, key) {
  return object ? hasOwnProperty.call(object, key) : false;
}

module.exports = has;