Function computeAriaPressed

src/role-helpers.js:280–283

* @param {Element} element - * @returns {boolean | undefined} - false/true if (not)pressed, undefined if not press-able

(element)

 * @returns {boolean | undefined} - false/true if (not)pressed, undefined if not press-able
 */
function computeAriaPressed(element) {
  // https://www.w3.org/TR/wai-aria-1.1/#aria-pressed
  return checkBooleanAttribute(element, 'aria-pressed')
}

/**
 * @param {Element} element -