Javascript DOM ondrop Event

Introduction

Execute a JavaScript when a draggable element is dropped in a <div> element:

Drag the p element back and forth between the two rectangles.

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<!DOCTYPE HTML>
<html>
<head>
<style>
.droptarget {//from w  w  w.j av  a  2  s.c  o  m
  float: left;
  width: 100px;
  height: 35px;
  margin: 15px;
  padding: 10px;
  border: 1px solid #aaaaaa;
}
</style>
</head>
<body>
<div class="droptarget" 
     ondrop="drop(event)" 
     ondragover="allowDrop(event)">
  <p ondragstart="dragStart(event)" 
     draggable="true" 
     id="dragtarget">Drag me!</p>
</div>

<div class="droptarget" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
<p id="demo"></p>
<script>
function dragStart(event) {
  event.dataTransfer.setData("Text", event.target.id);
  document.getElementById("demo").innerHTML = "Started to drag the p element";
}

function allowDrop(event) {
  event.preventDefault();
}

function drop(event) {
  event.preventDefault();
  var data = event.dataTransfer.getData("Text");
  event.target.appendChild(document.getElementById(data));
  document.getElementById("demo").innerHTML = "The p element was dropped";
}
</script>

</body>
</html>

The ondrop event occurs when a draggable element or text selection is dropped on a valid drop target.

To make an element draggable, use the global HTML5 draggable attribute.

Links and images are draggable by default, and do not need the draggable attribute.

Bubbles: Yes
Cancelable: Yes
Event type: DragEvent
Supported HTML tags: All HTML elements



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