make Browser.showTracks a no-op if it is passed nothing

GMOD · Jun 5, 2012 · 9408149 · 9408149
1 parent dd0b5fd
commit 9408149
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/js/Browser.js b/js/Browser.js
@@ -739,6 +739,9 @@ Browser.prototype.showTracks = function( trackNames ) {
     if( typeof trackNames == 'string' )
         trackNames = trackNames.split(',');
 
+    if( ! trackNames )
+        return;
+
     var trackConfs = dojo.filter(
         dojo.map( trackNames, function(n) {
                       return this.trackConfigsByName[n];