HugoGv

    let pushState = history.pushState;
    let self = this;
    history.pushState = function () {
        pushState.apply(history, arguments);
        self.fireEvents('pushState', arguments);
    };

HugoGv

var event = new Event('build');
elem.addEventListener('build', function (e) { ... }, false);
elem.dispatchEvent(event);

HugoGv

    const xmlHttp = new XMLHttpRequest();

    xmlHttp.onreadystatechange = () => {

      if (xmlHttp.readyState === XMLHttpRequest.DONE) {
        const response = xmlHttp.responseText;

        this.loadReport(reportName, response);
      }
    };

HugoGv

JADE:
section.accordeon__wrapper
  ul.accordeon
    li.accordeon__item
      a.accordeon__trigger(href="#{js}") accordeon item 1
      ul.accordeon__inner
        li.accordeon__inner__item: a.accordeon__inner__link(href="#{js}") accordeon inner link 1
        li.accordeon__inner__item: a.accordeon__inner__link(href="#{js}") accordeon inner link 2
        li.accordeon__inner__item: a.accordeon__inner__link(href="#{js}") accordeon inner link 3
    li.accordeon__item

HugoGv

		//кнопка наверх
	$(window).scroll(function() {
		if ($(this).scrollTop() > $(this).height()) {
			$('.top').addClass('active');
		} else {
			$('.top').removeClass('active');			
		}
	});
	$('.top').click(function() {
		$('html, body').stop().animate({scrollTop: 0}, 'slow', 'swing');

HugoGv

.button
	display: inline-block
	border: none
	color: #fff
	text-decoration: none
	background-color: $accent
	padding: 15px 45px
	font-size: 13px
	text-transform: uppercase
	font-weight: 600