DataTransfer.mozClearDataAt()

Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The DataTransfer.mozClearDataAt() method removes the data associated with the given format for an item at the specified index. The index must be in the range from zero to the number of items minus one.

If the format argument is not provided, then the data associated with all formats is removed. If the format is not found, then this method has no effect. If the last format for the item is removed, the entire item is removed, reducing mozItemCount by one.

Removing the last format for a particular index removes that item entirely, shifting the remaining items down and changing their indices.

Note: This method is Gecko-specific.

Syntax

void dataTransfer.mozClearDataAt([type], index);

Arguments

type: A string representing the type of the drag data to remove from the drag data object.
index: A unsigned long representing the index of the data to remove.

Return value

void

Example

This example shows the use of the mozClearDataAt() method in a dragend event handler.

function dragend_handler(event)
{
  var dt = event.dataTransfer;
  // Remove a text/html item
  dt.mozClearDataAt("text/html", 1);
}

Specifications

This method is not defined in any Web standard.

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
No support	No support	(Yes)	No support	No support	No support

Feature	Android	Android Webview	Chrome for Android	Firefox Mobile (Gecko)	Firefox OS	IE Mobile	Opera Mobile	Safari Mobile
Basic support	No support	No support	No support	?	?	No support	No support	No support

[1]Partial support refers to not supporting .setDragImage [CanIUse.com]