Reordering of constants for better readability in JS.

drag_and_drop_v2/public/js/drag_and_drop.js

@@ -12,6 +12,9 @@ function DragAndDropBlock(runtime, element, configuration) {
     var state = undefined;
     var __vdom = virtualDom.h();  // blank virtual DOM
 
+    // Event string size limit.
+    var MAX_LENGTH = 255;
+
     // Keyboard accessibility
     var ESC = 27;
     var RET = 13;
@@ -19,9 +22,6 @@ function DragAndDropBlock(runtime, element, configuration) {
     var TAB = 9;
     var M = 77;
 
-    // Event string size limit.
-    var MAX_LENGTH = 255;
-
     var placementMode = false;
     var $selectedItem;
     var $focusedElement;