Changing cursor to waiting in javascript/jquery

A colleague suggested an approach that I find preferable to the chosen solution here. First, in CSS, add this rule:

body.waiting * {
    cursor: progress;
}

Then, to turn on the progress cursor, say:

$('body').addClass('waiting');

and to turn off the progress cursor, say:

$('body').removeClass('waiting');

The advantage of this approach is that when you turn off the progress cursor, whatever other cursors may have been defined in your CSS will be restored. If the CSS rule is not powerful enough in precedence to overrule other CSS rules, you can add an id to the body and to the rule, or use !important.

In your jQuery use:

$("body").css("cursor", "progress");

and then back to normal again

$("body").css("cursor", "default");

Please don't use jQuery for this in 2021! There is no reason to include an entire external library just to perform this one action which can be achieved with one line:

Change cursor to spinner: document.body.style.cursor = 'wait'

Revert cursor to normal: document.body.style.cursor = 'default'