|  | var baseUpdate = require('./_baseUpdate'), | 
						
						
							|  |     castFunction = require('./_castFunction'); | 
						
						
							|  | 
 | 
						
						
							|  | /** | 
						
						
							|  |  * This method is like `_.set` except that accepts `updater` to produce the | 
						
						
							|  |  * value to set. Use `_.updateWith` to customize `path` creation. The `updater` | 
						
						
							|  |  * is invoked with one argument: (value). | 
						
						
							|  |  * | 
						
						
							|  |  * **Note:** This method mutates `object`. | 
						
						
							|  |  * | 
						
						
							|  |  * @static | 
						
						
							|  |  * @memberOf _ | 
						
						
							|  |  * @since 4.6.0 | 
						
						
							|  |  * @category Object | 
						
						
							|  |  * @param {Object} object The object to modify. | 
						
						
							|  |  * @param {Array|string} path The path of the property to set. | 
						
						
							|  |  * @param {Function} updater The function to produce the updated value. | 
						
						
							|  |  * @returns {Object} Returns `object`. | 
						
						
							|  |  * @example | 
						
						
							|  |  * | 
						
						
							|  |  * var object = { 'a': [{ 'b': { 'c': 3 } }] }; | 
						
						
							|  |  * | 
						
						
							|  |  * _.update(object, 'a[0].b.c', function(n) { return n * n; }); | 
						
						
							|  |  * console.log(object.a[0].b.c); | 
						
						
							|  |  * // => 9 | 
						
						
							|  |  * | 
						
						
							|  |  * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; }); | 
						
						
							|  |  * console.log(object.x[0].y.z); | 
						
						
							|  |  * // => 0 | 
						
						
							|  |  */ | 
						
						
							|  | function update(object, path, updater) { | 
						
						
							|  |   return object == null ? object : baseUpdate(object, path, castFunction(updater)); | 
						
						
							|  | } | 
						
						
							|  | 
 | 
						
						
							|  | module.exports = update;
 |