27. DOM Scripting: Play/Pause Part 2 – Assignment

Bloc · Sep 29, 2015 · ca5ad59 · ca5ad59
1 parent 116f17f
commit ca5ad59
Showing 1 changed file with 18 additions and 3 deletions.
diff --git a/scripts/album.js b/scripts/album.js
@@ -59,14 +59,29 @@ var setCurrentAlbum = function(album) {
     }
 };
 
+var child = document.getElementsByClassName('album-view-title')[0];
+var noParent = document.querySelector('html');
+
 var findParentByClassName = function(element, targetClass) {
     var currentParent = element.parentElement;
-    while (currentParent.className != targetClass) {
-        currentParent = currentParent.parentElement;
+
+    if (currentParent) {
+        while (currentParent.className && currentParent.className != targetClass) {
+            currentParent = currentParent.parentElement;
+        }
+
+        if (currentParent.className == targetClass) {
+            return currentParent;
+        } else {
+            alert("No parent with that class name found.");
+        }
+    } else {
+        alert("No parent found.");
     }
-    return currentParent;
 };
 
+findParentByClassName(child, 'album-view');
+
 var getSongItem = function(element) {  
     switch (element.className) {
         case 'album-song-button':