Add support for an array of event types

index.js

@@ -1,19 +1,21 @@
 function getElementsList(elements) {
-	if (typeof elements === 'string') {
-		elements = document.querySelectorAll(elements);
-	}
 	if (!elements) {
 		return [];
 	}
-	// if elements is actually just one element or window or document
+	if (typeof elements === 'string') {
+		elements = document.querySelectorAll(elements);
+	}
+	// if `elements` supports events directly (one element, document, window)
 	if (typeof elements.addEventListener === 'function') {
 		return [elements];
 	}
 	return elements;
 }
 
 function run(action, elements, types, listener, useCapture) {
-	types = types.split(' ').filter();
+	if (typeof types === 'string') {
+		types = types.split(' ').filter();
+	}
 	elements = getElementsList(elements);
 	var i, l, m, n;
 	for (i = 0, l = elements.length; i < l; i++) {