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example3.html
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<!DOCTYPE html>
<!-- Stolen from https://www.digitalocean.com/community/tutorials/js-drag-and-drop-vanilla-js -->
<html>
<head>
<title>My Drag-and-Drop Example</title>
<style>
.example-parent {
border: 2px solid #DFA612;
color: black;
display: flex;
font-family: sans-serif;
font-weight: bold;
}
.example-origin {
flex-basis: 100%;
flex-grow: 1;
padding: 10px;
}
.example-draggable {
background-color: #4AAE9B;
font-weight: normal;
margin-bottom: 10px;
margin-top: 10px;
padding: 10px;
}
.example-dropzone {
background-color: #6DB65B;
flex-basis: 100%;
flex-grow: 1;
padding: 10px;
}
</style>
<script>
function onDragStart(event) {
event
.dataTransfer
.setData('text/plain', event.target.id);
event
.currentTarget
.style
.backgroundColor = 'yellow';
}
function onDragOver(event) {
event.preventDefault();
}
function onDrop(event) {
const id = event
.dataTransfer
.getData('text');
//Select our draggable element with the id we retrieved:
const draggableElement = document.getElementById(id);
//Select our dropzone element:
const dropzone = event.target;
//Append our draggable element to the dropzone:
dropzone.appendChild(draggableElement);
//Reset our dataTransfer object:
event
.dataTransfer
.clearData();
}
</script>
</head>
<body>
<div class="example-parent">
<div class="example-origin">
<div
id="draggable-1"
class="example-draggable"
draggable="true"
ondragstart="onDragStart(event);"
>
draggable
</div>
<div
id="draggable-2"
class="example-draggable"
draggable="true"
ondragstart="onDragStart(event);"
>
thing 2
</div>
<div
id="draggable-3"
class="example-draggable"
draggable="true"
ondragstart="onDragStart(event);"
>
thing 3
</div>
<div
id="draggable-4"
class="example-draggable"
draggable="true"
ondragstart="onDragStart(event);"
>
thing 4
</div>
</div>
<div
class="example-dropzone"
ondragover="onDragOver(event);"
ondrop="onDrop(event);"
>
dropzone
</div>
</div>
</body>
</html>