Simple Javascript drag-and-drop applications (line-by-line code analysis makes it easy to drag the principle) _ javascript tips-js tutorial

This article mainly introduces some simple Javascript drag-and-drop applications (analyzing code line by line, making it easy to drag the principle ), for more information about how to drag objects out of a certain p and the adsorption function of drag and drop

The last time we talked about drag and drop, we could not drag out the range of the visible area. On this basis, we add a parent level p to prevent him from dragging out the parent level. The principle is the same as before.

Html code:

Css code:

Javascript code: