/*!
  Copyright (c) 2015 Jed Watson.
  Licensed under the MIT License (MIT), see
  http://jedwatson.github.io/classnames
*/

(function () {
	'use strict';

	function classNames () {

		var classes = '';

		for (var i = 0; i < arguments.length; i++) {
			var arg = arguments[i];
			if (!arg) continue;

			var argType = typeof arg;

			if ('string' === argType || 'number' === argType) {
				classes += ' ' + arg;

			} else if (Array.isArray(arg)) {
				classes += ' ' + classNames.apply(null, arg);

			} else if ('object' === argType) {
				for (var key in arg) {
					if (arg.hasOwnProperty(key) && arg[key]) {
						classes += ' ' + key;
					}
				}
			}
		}

		return classes.substr(1);
	}

	if (typeof module !== 'undefined' && module.exports) {
		module.exports = classNames;
	} else if (typeof define === 'function' && typeof define.amd === 'object' && define.amd){
		// AMD. Register as an anonymous module.
		define(function () {
			return classNames;
		});
	} else {
		window.classNames = classNames;
	}

}());