getKeyboardFocusableElements

gistfile1.txt

/**
 * Gets keyboard-focusable elements within a specified element
 * @param {HTMLElement} [element=document] element
 * @returns {Array}
 */
function getKeyboardFocusableElements(element = document) {
  return [
    ...element.querySelectorAll(
      'a[href], button, input, textarea, select, details,[tabindex]:not([tabindex="-1"])'
    ),
  ].filter(
    el => !el.hasAttribute('disabled') && !el.getAttribute('aria-hidden')
  )
}

// display:none - embed, object, iframe add to filter

https://zellwk.com/blog/keyboard-focusable-elements/