How to create a jQuery function to toggle dark mode?

you can define the dark mode styles in your CSS, and just use jQuery to toggle the dark-mode class.  helpful for evening reading. I have a toggle and have borrowed a function that seems to work so far:

CSS:

#canvas-wrapper.dark-mode {
  background: #222;
  color: #DDD;
}

jQuery:

$(function() {
  $(".switch").click(function() {
    $("#canvas-wrapper").toggleClass("dark-mode");
  });
});