Javascript JS删除和添加类计时功能

下面是一些js，我不知道如何修改它来实现我想要的。我需要在延迟40秒后激活js，而不是onclick

// retrieve the element
element = document.getElementById("ani");

// reset the transition by...
element.addEventListener("click", function(e){
e.preventDefault;

// -> removing the class
element.classList.remove("delay-1");

// -> triggering reflow /* The actual magic */
// without this it wouldn't work. Try uncommenting the line and the transition won't be         retriggered.
element.offsetWidth = element.offsetWidth;

// -> and re-adding the class
element.classList.add("delay-1");
}, false);

用于在指定的毫秒数后调用方法/任务

setTimeout(function() {
    //your code/function here
}, (40*1000)); //40 seconds

---

使用函数setTimeout

如图所示

就你而言：

// retrieve the element
element = document.getElementById("ani");

// reset the transition by...
element.addEventListener("click", function(e){
  e.preventDefault;

  //introducing a delay of 40 seconds.
  setTimeout(function() {
    // -> removing the class
    element.classList.remove("delay-1");

    // -> triggering reflow /* The actual magic */
    // without this it wouldn't work. Try uncommenting the line and the transition won't be         retriggered.
    element.offsetWidth = element.offsetWidth;

    // -> and re-adding the class
    element.classList.add("delay-1");
  }, 40 * 1000);
}, false);

---

使用setTimeout函数：

setTimeout(function() {
    // retrieve the element
    element = document.getElementById("ani");

    // reset the transition by...
    element.addEventListener("click", function(e){
    e.preventDefault;

    // -> removing the class
    element.classList.remove("delay-1");

    // -> triggering reflow /* The actual magic */
    // without this it wouldn't work. Try uncommenting the line and the transition won't be retriggered.
    element.offsetWidth = element.offsetWidth;

    // -> and re-adding the class
    element.classList.add("delay-1");
    }, false);
}, 40000);

---

只需使用一个.doi remove:“element.addEventListener”（“click”，function（e）{“我几乎有0个js知识是的，

e.preventDefault（）

让它工作起来了，非常感谢！+1，最后一个问题，我能让它每40秒重复一次吗？我有多个div也可以这样做，但时间相同。