Impress.js：如何使用impress.js修改dom

Question

我正在使用impress.js进行幻灯片。当我到达幻灯片编号16时，我希望impress.js调用名为myFunction()的函数来修改DOM。我该如何致电myFunction()？ p.s当我到达幻灯片时没有16 impress.js在url中添加step-16

Answer 1

<script type="text/javascript">
document.addEventListener("impress:stepenter",function() {
x = document.activeElement;
console.log(x);
if(x.classList[2] == "impress-on-step-16")
      {
         document.getElementById("change").innerHTML = "Graph | Traversals | Breadth First Search"
      }
}

）