Mark properties as nullable

2019-09-27 13:57:58 +02:00
parent 0e402073da
commit f67476dd8f
11 changed files with 13 additions and 13 deletions
@@ -115,7 +115,7 @@ class DragAndDrop extends Interaction {

    /**
     * @private
-     * @type {Array<import("../events.js").EventsKey>}
+     * @type {?Array<import("../events.js").EventsKey>}
     */
    this.dropListenKeys_ = null;