Introduced 3.1.0

Returns a list of focusable elements within a target, optionally also including the target (if it itself is also focusable)

• isVisible (handled automatically)

• el - required - DOM node to test
• includeTarget - optional - boolean - defaults to false

• an array of focusable elements from within the target

Imagine this example HTML:

...
<div id="modal">
  <button id="modalClose">Close Modal</button>
  <h1>Hello World</h1>
  <p>Lorem ipsum <a href="/">link</a> dolor sit amet...</p>
  ...
</div>
...

let modal = document.querySelector('#modal');
let focusable = getFocusableElements(modal);
// [button#modalClose, a]