This value is null for external drags or if the caller can't access the node. DataTransfer.mozSourceNode Read only The Node over which the mouse cursor was located when the button was pressed to initiate the drag operation. This is primarily used to control the cursor during tab drags. DataTransfer.mozCursor Gives the drag cursor's state. Note: All of the properties in this section are Gecko-specific. DataTransfer.types Read only An array of strings giving the formats that were set in the dragstart event. ems Read only Gives a DataTransferItemList object which is a list of all of the drag data. If the drag operation doesn't involve dragging files, this property is an empty list. DataTransfer.files Contains a list of all the local files available on the data transfer. Must be one of none, copy, copyLink, copyMove, link, linkMove, move, all or uninitialized. DataTransfer.effectAllowed Provides all of the types of operations that are possible. The value must be none, copy, link or move. Properties Standard properties DataTransfer.dropEffect Gets the type of drag-and-drop operation currently selected or sets the operation to a new type. Constructor DataTransfer() Creates and returns a new DataTransfer object. This object is available from the dataTransfer property of all drag events. For more information about drag and drop, see HTML Drag and Drop API. It may hold one or more data items, each of one or more data types. The DataTransfer object is used to hold the data that is being dragged during a drag and drop operation.
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