$(button).toggleClass(ClassName.FOCUS, /^focus(in)?$/.test(event.type))\n  })\n\n$(window).on(Event.LOAD_DATA_API, () => {\n  // ensure correct active class is set to match the controls' actual values/states\n\n  // find all checkboxes/readio buttons inside data-toggle groups\n  let buttons = [].slice.call(document.querySelectorAll(Selector.DATA_TOGGLES_BUTTONS))\n  for (let i = 0, len = buttons.length; i < len; i++) {\n    const button = buttons[i]\n    const input = button.querySelector(Selector.INPUT)\n...

implementation\n * ------------------------------------------------------------------------\n */\n\n$(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {\n  // preventDefault only for <a> elements (which change the URL) not inside the collapsible element\n  if (event.currentTarget.tagName === 'A') {\n    event.preventDefault()\n  }\n\n  const $trigger = $(this)\n  const selector = Util.getSelectorFromElement(this)\n  const selectors = [].slice.call(document.querySelectorAll(selector))\n\n...