jquery 获取最后一个元素

, but the browser treated the icon as a single child icon and made it block level, which messed up the entire UI. Finally I switched to using >img to select the direct children directly and that solved the problem. Therefore, the use of selectors must be based on specific situations and cannot be generalized.
对于自定义选择器，我使用了 :animated。
It creates a carousel effect and you need to add a mask layer to the moving images. Use $('.carousel img:visible:animated') directly to select all visible and animated images, which is very cool when used with CSS animations. Of course, although jQuery's selectors are convenient, you need to pay attention to performance. Particularly complex selectors can get stuck in areas with many DOM nodes. I personally have not conducted any large data testing in this area, but my colleagues have encountered pitfalls.
In short, jQuery's select function is powerful, but you need to understand its limitations when using it. Sometimes you have to cooperate with methods like .children() and .find() to achieve the goal. Example: Only child elements cannot select text nodes. At this point, you need to write a function to iterate through the child node types and filter out text and comment types. I didn't know how to implement this elegantly at the time, so I finally did it by using .contents() plus .not("::text, ::comment").