Pragmatic drag and drop is a front-end drag component, which is open source by the well-known software development company Atlassian. As the Pragmatic ("practical") in its name says, this component supports many drag scenarios, attaches great importance to performance, and becomes safe and simple by using the browser's powerful and flexible built-in drag function. At present, the core products of Atlassian, such as Trello, Jira and Confluence, all use Pragmatic drag and drop. Before Pragmatic drag and drop, the component author Alex Reardon also created another popular React