updateWith.js (1187B)
1 var baseUpdate = require('./_baseUpdate'), 2 castFunction = require('./_castFunction'); 3 4 /** 5 * This method is like `_.update` except that it accepts `customizer` which is 6 * invoked to produce the objects of `path`. If `customizer` returns `undefined` 7 * path creation is handled by the method instead. The `customizer` is invoked 8 * with three arguments: (nsValue, key, nsObject). 9 * 10 * **Note:** This method mutates `object`. 11 * 12 * @static 13 * @memberOf _ 14 * @since 4.6.0 15 * @category Object 16 * @param {Object} object The object to modify. 17 * @param {Array|string} path The path of the property to set. 18 * @param {Function} updater The function to produce the updated value. 19 * @param {Function} [customizer] The function to customize assigned values. 20 * @returns {Object} Returns `object`. 21 * @example 22 * 23 * var object = {}; 24 * 25 * _.updateWith(object, '[0][1]', _.constant('a'), Object); 26 * // => { '0': { '1': 'a' } } 27 */ 28 function updateWith(object, path, updater, customizer) { 29 customizer = typeof customizer == 'function' ? customizer : undefined; 30 return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer); 31 } 32 33 module.exports = updateWith;