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						 | 
						- var assignValue = require('./_assignValue'),
 -     baseAssignValue = require('./_baseAssignValue');
 - 
 - /**
 -  * Copies properties of `source` to `object`.
 -  *
 -  * @private
 -  * @param {Object} source The object to copy properties from.
 -  * @param {Array} props The property identifiers to copy.
 -  * @param {Object} [object={}] The object to copy properties to.
 -  * @param {Function} [customizer] The function to customize copied values.
 -  * @returns {Object} Returns `object`.
 -  */
 - function copyObject(source, props, object, customizer) {
 -   var isNew = !object;
 -   object || (object = {});
 - 
 -   var index = -1,
 -       length = props.length;
 - 
 -   while (++index < length) {
 -     var key = props[index];
 - 
 -     var newValue = customizer
 -       ? customizer(object[key], source[key], key, object, source)
 -       : undefined;
 - 
 -     if (newValue === undefined) {
 -       newValue = source[key];
 -     }
 -     if (isNew) {
 -       baseAssignValue(object, key, newValue);
 -     } else {
 -       assignValue(object, key, newValue);
 -     }
 -   }
 -   return object;
 - }
 - 
 - module.exports = copyObject;
 
 
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