1 define(['../array/forEach', '../array/slice', './forOwn'], function (forEach, slice, forOwn) {
4 * Copy missing properties in the obj from the defaults.
6 function fillIn(obj, var_defaults){
7 forEach(slice(arguments, 1), function(base){
8 forOwn(base, function(val, key){
9 if (obj[key] == null) {