DataTransfer.mozTypesAt()

The DataTransfer.mozTypesAt() method returns a list of the format types that are stored for an item at the specified index. If the index is not in the range from 0 to the number of items minus one, an empty string list is returned.

Syntax

nsIVariant dataTransfer.mozTypesAt(index);

Arguments

index

A unsigned long that is the index of the data for which to retrieve the types.

Return value

nsIVariant

A list of data formats (which are strings). If the index is not in the range from 0 to the number of items minus one, an empty string list is returned.

Example

This example shows the use of the mozTypesAt() method in a drop event handler.

function drop_handler(event)
{
  var dt = event.dataTransfer;
  var count = dt.mozItemCount;
  output("Items: " + count + "\n");
  for (var i = 0; i < count; i++) {
    output(" Item " + i + ":\n");
    var types = dt.mozTypesAt(i);
    for (var t = 0; t < types.length; t++) {
      output("  " + types[t] + ": ");
      try {
        var data = dt.mozGetDataAt(types[t], i);
        output("(" + (typeof data) + ") : <" + data + " >\n");
      } catch (ex) {
        output("<>\n");
        dump(ex);
      }
    }
  }
}

Specifications

This method is not defined in any Web standard.

Browser compatibility

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

See also