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.
DeprecatedThis feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
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.
Note: This method is Gecko-specific.
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
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Chrome
No support No |
Edge
No support No |
Firefox
No support ? — 71 |
IE
No support No |
Opera
No support No |
Safari
No support No |
WebView Android
No support No |
Chrome Android
No support No |
Firefox Android
? |
Opera Android
No support No |
Safari iOS
No support No |
Samsung Internet Android
No support No |
Legend
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.'
- Experimental. Expect behavior to change in the future.
- Non-standard. Expect poor cross-browser support.'
- Non-standard. Expect poor cross-browser support.
See also
DataTransfer.mozTypesAt() by Mozilla Contributors is licensed under CC-BY-SA 2.5.