1 var baseMerge = require('./_baseMerge'),
2 createAssigner = require('./_createAssigner');
5 * This method is like `_.merge` except that it accepts `customizer` which
6 * is invoked to produce the merged values of the destination and source
7 * properties. If `customizer` returns `undefined` merging is handled by the
8 * method instead. The `customizer` is invoked with seven arguments:
9 * (objValue, srcValue, key, object, source, stack).
11 * **Note:** This method mutates `object`.
16 * @param {Object} object The destination object.
17 * @param {...Object} sources The source objects.
18 * @param {Function} customizer The function to customize assigned values.
19 * @returns {Object} Returns `object`.
22 * function customizer(objValue, srcValue) {
23 * if (_.isArray(objValue)) {
24 * return objValue.concat(srcValue);
29 * 'fruits': ['apple'],
30 * 'vegetables': ['beet']
34 * 'fruits': ['banana'],
35 * 'vegetables': ['carrot']
38 * _.mergeWith(object, other, customizer);
39 * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }
41 var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {
42 baseMerge(object, source, srcIndex, customizer);
45 module.exports = mergeWith;