3MFLoader: Clean up

examples/js/loaders/3MFLoader.js

@@ -668,9 +668,11 @@ THREE.ThreeMFLoader.prototype = {
 
 					// transform composite if necessary
 
-					if ( buildItem[ 'transform' ] ) {
+					var transform = buildItem[ 'transform' ];
+
+					if ( transform ) {
 
-						composite.applyMatrix( buildItem[ 'transform' ] );
+						composite.applyMatrix( transform );
 
 					}