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Droppable

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Usage

The useDroppable hook isn’t opinionated about how you should structure your application. At minimum though, you need to pass the setNodeRef function that is returned by the useDroppable hook to a DOM element so that it can register the underlying DOM node and keep track of it to detect collisions and intersections with other draggable elements.
If the concept of ref is new to you, we recommend you first check out the Refs and the DOM article on the React documentation website.
import {useDroppable} from '@dnd-kit/core';

function Droppable() {
  const {setNodeRef} = useDroppable({
    id: 'unique-id',
  });

  return <div ref={setNodeRef}>/* Render whatever you like within */</div>;
}
You can set up as many droppable containers as you want, just make sure they all have a unique id so that they can be differentiated. Each droppable needs to have its own unique node though, so make sure you don’t try to connect a single droppable to multiple refs. To set up multiple droppable targets, simply use the useDroppable hook as many times as needed. 
function MultipleDroppables() {
  const {setNodeRef: setFirstDroppableRef} = useDroppable({
    id: 'droppable-1',
  });
  const {setNodeRef: setsecondDroppableRef} = useDroppable({
    id: 'droppable-2',
  });

  return (
    <section>
      <div ref={setFirstDroppableRef}>
        /* Render whatever you like within */
      </div>
      <div ref={setsecondDroppableRef}>
        /* Render whatever you like within */
      </div>
    </section>
  );
}
If you need to dynamically render a list of droppable containers, we recommend you create a re-usable Droppable component and render that component as many times as needed: 
function Droppable(props) {
  const {setNodeRef} = useDroppable({
    id: props.id,
  });

  return <div ref={setNodeRef}>{props.children}</div>;
}

function MultipleDroppables() {
  const droppables = ['1', '2', '3', '4'];

  return (
    <section>
      {droppables.map((id) => (
        <Droppable id={id} key={id}>
          Droppable container id: ${id}
        </Droppable>
      ))}
    </section>
  );
}
For more details usage of the useDroppable hook, refer to the API documentation section:

useDroppable