触发JavaScript中的内置事件？ [英] Trigger a built in event in javascript?

问题描述

我注意到您可以像这样使用javascript 制作和触发自己的海关事件和事件监听器。我可以做类似的事情来人为地触发一个预先存在的事件吗？

I noticed that you can make and trigger your own customs events and event listeners in javascript like this. Can I do something similar to trigger a pre-existing event artificially?

例如说我正在加载外部JavaScript，而我想人为地触发实际触发事件后，DOMContentLoaded 。

For example say I'm loading external javascript and I want to artificially trigger DOMContentLoaded after the event has actually fired.

推荐答案

// Code goes here
document.addEventListener("DOMContentLoaded", function(event) {
    console.log(" DOMContentLoaded triggered");
  });
var event = document.createEvent('Event');
// Define that the event
event.initEvent('DOMContentLoaded', true, true);
// target can be any Element or other EventTarget.
document.dispatchEvent(event);
  

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