[Event Name] dragstart [Target] Source node [Bubbles?] ✓ Bubbles [Cancelable?] ✓ Cancelable [dataTransfer] Contains source node unless a selection is being dragged, in which case it is empty; files returns any files included in the drag operation [effectAllowed] uninitialized [Default Action] Initiate the drag-and-drop operation [dropEffect] 
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B a s e d o n e f f e c t A l l o w e d v a l u e
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