hasIn.js
 1  var baseHasIn = require('./_baseHasIn'),
 2      hasPath = require('./_hasPath');
 3  
 4  /**
 5   * Checks if `path` is a direct or inherited property of `object`.
 6   *
 7   * @static
 8   * @memberOf _
 9   * @since 4.0.0
10   * @category Object
11   * @param {Object} object The object to query.
12   * @param {Array|string} path The path to check.
13   * @returns {boolean} Returns `true` if `path` exists, else `false`.
14   * @example
15   *
16   * var object = _.create({ 'a': _.create({ 'b': 2 }) });
17   *
18   * _.hasIn(object, 'a');
19   * // => true
20   *
21   * _.hasIn(object, 'a.b');
22   * // => true
23   *
24   * _.hasIn(object, ['a', 'b']);
25   * // => true
26   *
27   * _.hasIn(object, 'b');
28   * // => false
29   */
30  function hasIn(object, path) {
31    return object != null && hasPath(object, path, baseHasIn);
32  }
33  
34  module.exports = hasIn;