Function classNames

bind.js:13–24

()

	var hasOwn = {}.hasOwnProperty;

	function classNames () {
		var classes = '';

		for (var i = 0; i < arguments.length; i++) {
			var arg = arguments[i];
			if (arg) {
				classes = appendClass(classes, parseValue.call(this, arg));
			}
		}

		return classes;
	}

	function parseValue (arg) {
		if (typeof arg === 'string' || typeof arg === 'number') {