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The DataTransferItem.getAsString() method invokes the given callback with the drag data item's string data as the argument if the item's kind is a Plain unicode string (i.e. kind is string).




A callback function that has access to the data transfer item's string data. See Callback below for details.

Return value



The callback parameter is a callback function which accepts one parameter:

The drag data item's string data.

The callback return value is undefined.


This example shows the use of the getAsString() method as an inline function in a drop event handler.

function drop_handler(ev) {
 var data = ev.dataTransfer.items;
 for (var i = 0; i < data.length; i += 1) {
   if ((data[i].kind == 'string') && 
       (data[i].type.match('^text/plain'))) {
     // This item is the target node
     data[i].getAsString(function (s){; 
   } else if ((data[i].kind == 'string') && 
              (data[i].type.match('^text/html'))) {
     // Drag data item is HTML
     console.log("... Drop: HTML");
   } else if ((data[i].kind == 'string') && 
              (data[i].type.match('^text/uri-list'))) {
     // Drag data item is URI
     console.log("... Drop: URI");
   } else if ((data[i].kind == 'file') && 
              (data[i].type.match('^image/'))) {
     // Drag data item is an image file
     var f = data[i].getAsFile();
     console.log("... Drop: File ");


Specification Status Comment
HTML Living Standard
The definition of 'getAsString()' in that specification.
Living Standard Initial definition.
HTML 5.1
The definition of 'getAsString()' in that specification.
Recommendation Snapshot fo HTML WHATWG document

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 4 (Yes) 50 (50) No support 12 No support
Feature Android Android Webview Chrome for Android Edge Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support No support No support No support (Yes) 50 (50) No support No support No support No support

See also

Document Tags and Contributors

 Contributors to this page: dikirill, erikadoyle, teoli, Sheppy, rolfedh, AFBarstow
 Last updated by: dikirill,