The read-only DataTransfer
property items
property is a list
of the data transfer items
in a drag operation. The list includes one item for each item in the operation and if the operation had no items, the list is empty.
itemList = dataTransfer.items;
A DataTransferItemList
object containing DataTransferItem
objects representing the items being dragged in a drag operation, one list item for each object being dragged. If the drag operation had no data, the list is empty.
This example shows the use of the items
and types
properties.
<!DOCTYPE html> <html lang=en> <title>Examples of DataTransfer.{types,items} properties</title> <meta content="width=device-width"> <style> div { margin: 0em; padding: 2em; } #target { border: 1px solid black; } </style> <script> function dragstart_handler(ev) { console.log("dragStart: target.id = " + ev.target.id); // Add this element's id to the drag payload so the drop handler will // know which element to add to its tree ev.dataTransfer.setData("text/plain", ev.target.id); ev.dataTransfer.effectAllowed = "move"; } function drop_handler(ev) { console.log("drop: target.id = " + ev.target.id); ev.preventDefault(); // Get the id of the target and add the moved element to the target's DOM var data = ev.dataTransfer.getData("text"); ev.target.appendChild(document.getElementById(data)); // Print each format type if (ev.dataTransfer.types != null) { for (var i=0; i < ev.dataTransfer.types.length; i++) { console.log("... types[" + i + "] = " + ev.dataTransfer.types[i]); } } // Print each item's "kind" and "type" if (ev.dataTransfer.items != null) { for (var i=0; i < ev.dataTransfer.items.length; i++) { console.log("... items[" + i + "].kind = " + ev.dataTransfer.items[i].kind + " ; type = " + ev.dataTransfer.items[i].type); } } } function dragover_handler(ev) { console.log("dragOver"); ev.preventDefault(); // Set the dropEffect to move ev.dataTransfer.dropEffect = "move" } </script> <body> <h1>Examples of <code>DataTransfer</code>.{<code>types</code>, <code>items</code>} properties</h1> <ul> <li id="i1" ondragstart="dragstart_handler(event);" draggable="true">Drag Item 1 to the Drop Zone</li> <li id="i2" ondragstart="dragstart_handler(event);" draggable="true">Drag Item 2 to the Drop Zone</li> </ul> <div id="target" ondrop="drop_handler(event);" ondragover="dragover_handler(event);">Drop Zone</div> </body> </html>
Specification | Status | Comment |
---|---|---|
HTML Living Standard The definition of 'items' in that specification. | Living Standard | |
HTML 5.1 The definition of 'items' in that specification. | Recommendation | Initial definition |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | 4 | Yes | 50 | No | 12 | No |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | Yes | Yes | Yes | 50 | Yes | No | ? |
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer/items