Merge more than one JSON objects into one object in Node.JS

merge.js

/**
 * @name merge
 * @author Mazhar Ahmed
 *
 * this function will merge more than one json objects into one object
 *
 * @uses
 * var object3 = merge(object1, object2);
 *
 */
 var merge = function() {
	var destination = {};
	var sources = [].slice.call(arguments, 0);
	sources.forEach(function(source) {
		var prop;
		for (prop in source) {
			if (prop in destination && Array.isArray(destination[prop])) {
				// Concat Arrays
				destination[prop] = destination[prop].concat(source[prop]);
			} else if (prop in destination && typeof destination[prop] === 'object') {
				// Merge Objects
				destination[prop] = merge(destination[prop], source[prop]);
			} else {
				// Set new values
				destination[prop] = source[prop];
			}
		}	// end of for
	});	// end of forEach
	return destination;
};