HTML | DOM ondrop Event - GeeksforGeeks

The HTML DOM ondrop event occurs when a draggable element is dropped on a valid drop target.

There are some events that are used and occurred in the different stages of a drag and drop operation:

ondragstart: occurs when dragging of an element started.
ondrag: occurs while an element is dragging.
ondragend: occurs when dragging of an element finished.

ondragenter: occurs when the dragged element entered into the drop target.
ondragover: occurs when the dragged element is over the drop target.
ondragleave: occurs when the dragged element leaves from the drop target.
ondrop: occurs when the dragged element is dropped on the drop target.

Syntax:

In HTML:
```
<element ondrop="myScript">
```
In JavaScript:
```
object.ondrop = function(){myScript};
```
In JavaScript, using the addEventListener() method:
```
object.addEventListener("drop", myScript);
```

Note: Links and images are draggable by default.

Example 1:

<!DOCTYPE HTML> 
<html> 
  
<head> 
    <title>HTML DOM ondrop Event</title> 
    <style> 
        .droptarget { 
            float: center; 
            width: 300px; 
            height: 50px; 
            margin: 20px; 
            padding: 5px; 
            border: 6px solid green; 
        } 
    </style> 
</head> 
  
<body> 
    <center> 
        <h1 style="color:green"> 
          GeeksforGeeks 
      </h1> 
        <h2>HTML DOM ondrop Event</h2> 
  
        <div class="droptarget" 
             ondrop="dropEle(event)" 
             ondragover="allowDropEle(event)"> 
  
            <p ondragstart="dragStartEle(event)"
               draggable="true" 
               id="dragtarget"> 
                Dragable element 
            </p> 
  
        </div> 
  
        <div class="droptarget" 
             ondrop="dropEle(event)" 
             ondragover="allowDropEle(event)"> 
        </div> 
  
        <p id="demo"></p> 
  
        <script> 
            function dragStartEle(event) { 
                event.dataTransfer.setData( 
                  "Text", event.target.id); 
                
                document.getElementById( 
                  "demo").innerHTML = "Dragging starts"; 
            } 
  
            function allowDropEle(event) { 
                event.preventDefault(); 
            } 
  
            function dropEle(event) { 
                event.preventDefault(); 
                var data =  
                    event.dataTransfer.getData("Text"); 
                
                event.target.appendChild( 
                  document.getElementById(data)); 
                
                document.getElementById("demo").innerHTML =  
                  "Element dropped"; 
            } 
        </script> 
    </center> 
  
</body> 
  
</html> 

Output:

Example 2:

<!DOCTYPE HTML> 
<html> 
  
<head> 
    <title> 
        HTML DOM ondrop Event 
    </title> 
    <style> 
        .droptarget { 
            float: center; 
            width: 300px; 
            height: 50px; 
            margin: 20px; 
            padding: 5px; 
            border: 6px solid green; 
        } 
    </style> 
</head> 
  
<body> 
    <center> 
        <h1 style="color:green"> 
          GeeksforGeeks 
      </h1> 
        <h2>HTML DOM ondrop Event</h2> 
  
        <div class="droptarget"> 
            <p draggable="true" 
               id="dragtarget"> 
                Dragable element 
          </p> 
        </div> 
  
        <div class="droptarget"> 
      </div> 
  
        <p id="demo"></p> 
  
        <script> 
            // Event fired on the drag target  
            document.ondragstart = function(event) { 
                event.dataTransfer.setData("Text", event.target.id); 
                document.getElementById("demo").innerHTML = "Dragging starts"; 
            }; 
  
            // Events fired on the drop target  
            document.ondragover = function(event) { 
                event.preventDefault(); 
            }; 
  
            document.ondrop = function(event) { 
                event.preventDefault(); 
                var data = event.dataTransfer.getData("Text"); 
                event.target.appendChild(document.getElementById(data)); 
                document.getElementById("demo").innerHTML = "Element dropped"; 
            }; 
        </script> 
    </center> 
</body> 
  
</html> 

Output:

Example 3:

<!DOCTYPE HTML> 
<html> 
  
<head> 
    <title>HTML DOM ondrop Event</title> 
    <style> 
        .droptarget { 
            float: center; 
            width: 300px; 
            height: 50px; 
            margin: 20px; 
            padding: 5px; 
            border: 6px solid green; 
        } 
    </style> 
</head> 
  
<body> 
    <center> 
        <h1 style="color:green"> 
          GeeksforGeeks 
      </h1> 
        <h2>HTML DOM ondrop Event</h2> 
  
        <div class="droptarget"> 
            <p draggable="true" id="dragtarget"> 
              Dragable element</p> 
        </div> 
  
        <div class="droptarget"></div> 
  
        <p id="demo"></p> 
  
        <script> 
            // Event fired on the drag target  
            document.addEventListener("dragstart", function(event) { 
                event.dataTransfer.setData("Text", event.target.id); 
                document.getElementById("demo").innerHTML = "Dragging starts"; 
            }); 
  
            // Events fired on the drop target  
            document.addEventListener("dragover", function(event) { 
                event.preventDefault(); 
            }); 
  
            document.addEventListener("drop", function(event) { 
                event.preventDefault(); 
                var data = event.dataTransfer.getData("Text"); 
                event.target.appendChild(document.getElementById(data)); 
                document.getElementById("demo").innerHTML = "Element dropped"; 
            }); 
        </script> 
    </center> 
  
</body> 
  
</html> 

Output:

Supported Browsers: The browsers supported by HTML DOM ondrop Event are listed below:

Google Chrome
Internet Explorer
Firefox
Apple Safari
Opera

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