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.
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.
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 uses items
to log information about dragged items.
html
<ul> <li id="source1" draggable="true">Drag Item 1 to the Drop Zone</li> <li id="source2" draggable="true">Drag Item 2 to the Drop Zone</li> </ul> <div id="target">Drop Zone</div> <button id="reset">Reset</button>
css
div { margin: 0em; padding: 2em; } #target { border: 1px solid black; }
js
function dragstartHandler(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 dropHandler(ev) { ev.preventDefault(); // Get the id of the target and add the moved element to the target's DOM const data = ev.dataTransfer.getData("text"); ev.target.appendChild(document.getElementById(data)); // Print each item's "kind" and "type" if (ev.dataTransfer.items) { for (const item of ev.dataTransfer.items) { console.log(`kind = ${item.kind}, type = ${item.type}`); } } } function dragoverHandler(ev) { ev.preventDefault(); // Set the dropEffect to move ev.dataTransfer.dropEffect = "move"; } const source1 = document.querySelector("#source1"); const source2 = document.querySelector("#source2"); const target = document.querySelector("#target"); source1.addEventListener("dragstart", dragstartHandler); source2.addEventListener("dragstart", dragstartHandler); target.addEventListener("dragover", dragoverHandler); target.addEventListener("drop", dropHandler); const reset = document.querySelector("#reset"); reset.addEventListener("click", () => document.location.reload());
Specification |
---|
HTML Standard # dom-datatransfer-items-dev |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
items |
3 | 12 | 50 | No | 12 | 11.1 | ≤37 | 18 | 52 | 12 | 11.3 | 1.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer/items