Demo ReactJS – Kéo thả xuyên màn hình

ReactJS has become a popular JavaScript library for building user interfaces, and with its flexibility and component-based architecture, it allows for creating interactive and dynamic web applications. One of the features that ReactJS provides is the ability for drag and drop functionality, allowing users to easily move elements across the screen.

In this demo, we will explore how to implement drag and drop functionality in ReactJS, specifically focusing on the ability to drag and drop elements across the screen.

To get started, let’s first create a simple ReactJS app. We’ll use the create-react-app tool to quickly set up a new project:

        npx create-react-app drag-and-drop-demo
cd drag-and-drop-demo
npm start
    

Once the app is set up, we can start implementing the drag and drop functionality. We can use the HTML5 drag and drop API to handle the dragging and dropping of elements. We’ll start by creating a component that will represent the draggable element:

        
import React from 'react';

const DraggableElement = () => {
  const handleDragStart = (e) => {
    e.dataTransfer.setData('text/plain', 'Drag me!');
  }

  return (
    <div 
      onDragStart={handleDragStart}
      draggable="true"
    >
      Drag me!
    </div>
  );
}

export default DraggableElement;
        
    

Now that we have created a draggable element, we can create another component to represent the drop target:

        
import React from 'react';

const DropTarget = () => {
  const handleDrop = (e) => {
    e.preventDefault();
    const data = e.dataTransfer.getData('text/plain');
    // Do something with the dropped data
  }

  const handleDragOver = (e) => {
    e.preventDefault();
  }

  return (
    <div 
      onDrop={handleDrop}
      onDragOver={handleDragOver}
    >
      Drop here
    </div>
  );
}

export default DropTarget;
        
    

With these two components in place, we can now use them within our main app component to create the drag and drop functionality:

        
import React from 'react';
import DraggableElement from './DraggableElement';
import DropTarget from './DropTarget';

const App = () => {
  return (
    <div>
      <DraggableElement />
      <DropTarget />
    </div>
  );
}

export default App;
        
    

By using these components, we have successfully implemented drag and drop functionality in our ReactJS app. Users can now drag the draggable element and drop it onto the drop target, providing a seamless and interactive user experience.

Overall, ReactJS provides a powerful toolkit for creating dynamic and interactive web applications, and the drag and drop functionality is just one example of the many features it offers. By leveraging the HTML5 drag and drop API and React’s component-based architecture, developers can easily implement drag and drop functionality to enhance the user experience of their web apps.

For more information on ReactJS, JavaScript, and coding tips, be sure to follow #react #javascript #code.

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