从某个类中获取除元素以外的所有元素？

Question

I currently have a JavaScript function that uses getElementsByClassName("apples") to find everything in the class apples . My problem is that I can't seem to find a way to fetch every element not in the class apples . Is there any helper functions in JavaScript that might allow me to do this? Thanks for the help!

Answer 1

You can't do it with getElementsByClassName .

The easiest way on modern browsers would be to use:

document.querySelectorAll(':not(.apples)')

On older browsers you'd probably have to use document.getElementsByTagName('*') followed by a filtering operation to remove the unwanted elements. This would probably be very slow.