JavaScript ondragstart Event
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JavaScript ondragstart Event
The ondragstart event occurs when the user starts to drag a draggable element.
ondragstart Event as Attribute
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<p id="point">Drag the ball inside the Box:</p>
<div id="myDiv" ondrop="onDrop(event)" ondragover="onDragOver(event)"></div>
<img id="myImg" src="/football.svg" draggable="true" ondragstart="onDragStart(event)">
<script>
var x = document.getElementById("point");
function onDragOver(e) {
e.preventDefault();
}
function onDragStart(e) {
e.dataTransfer.setData("text", e.target.id);
}
function onDrop(e) {
var data = e.dataTransfer.getData("text");
e.target.appendChild(document.getElementById(data));
x.innerHTML = "Good Job";
}
</script>
</body>
</html>
Syntax
As Attribute
<element ondragstart = "JavaScript">
As Property
object.ondragstart = function(){
// code
};
Using Event Listener
object.addEventListener("dragstart" , myScript);
ondragstart Event as Property
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<p id="point">Drag the ball inside the Box:</p>
<div id="myDiv" ondrop="onDrop(event)" ondragover="onDragOver(event)"></div>
<img id="myImg" src="/football.svg" draggable="true" width="95" height="95">
<script>
var x = document.getElementById("point");
var myImg = document.getElementById("myImg");
function onDragOver(e) {
e.preventDefault();
}
function onDrop(e) {
var data = e.dataTransfer.getData("text");
e.target.appendChild(document.getElementById(data));
x.innerHTML = "Good Job";
}
myImg.ondragstart = function(e){
e.dataTransfer.setData("text", e.target.id);
};
</script>
</body>
</html>
Using addEventListener() Method
Note: The addEventListener() method is not supported in Internet Explorer 8 and below.
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<p id="point">Drag the ball inside the Box:</p>
<div id="myDiv" ondrop="onDrop(event)" ondragover="onDragOver(event)"></div>
<img id="myImg" src="/football.svg" draggable="true" width="95" height="95">
<script>
var x = document.getElementById("point");
var myImg = document.getElementById("myImg");
function onDragOver(e) {
e.preventDefault();
}
function onDrop(e) {
var data = e.dataTransfer.getData("text");
e.target.appendChild(document.getElementById(data));
x.innerHTML = "Good Job";
}
myImg.addEventListener("dragstart", function(e){
e.dataTransfer.setData("text", e.target.id);
});
</script>
</body>
</html>
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