How to remove a class from elements in pure JavaScript?

Question

I would like to know how to select all elements with class names \"widget\" and \"hover\" and then remove class \"hover\" from these elements.

I have the following J

Answer 1

var elems = document.querySelectorAll(".widget.hover");

[].forEach.call(elems, function(el) {
    el.classList.remove("hover");
});

---

You can patch .classList into IE9. Otherwise, you'll need to modify the .className.

var elems = document.querySelectorAll(".widget.hover");

[].forEach.call(elems, function(el) {
    el.className = el.className.replace(/\bhover\b/, "");
});

The .forEach() also needs a patch for IE8, but that's pretty common anyway.