This tutorial explains the difference between the DOMContentLoaded event and the load event, as well as ... ... <看更多>

Many web pages that make requests using JS are never really fully loaded, because they can always request more assets seconds, ... ... <看更多>

The DOMContentLoaded fires when the DOM content is loaded, without waiting for images and stylesheets to finish loading. You need to handle the DOMContentLoaded ... ... <看更多>

A load event listener (including onload event handler) in document should never be invoked. */. window.addEventListener('DOMContentLoaded' ... ... <看更多>

While doing my JS labs, I encountered lots of null values while trying to learn about event listeners or how to extract valuable information ... ... <看更多>

You can do this. def dom_content_event_fired(**kwargs): print "[content] dom content event fired" tab.set_listener("Page.domContentEventFired" ... ... <看更多>

Luckily, there's a solution to loading JavaScript without blocking the onload event. It's a technique pioneered by Meebo, and also known as "Friendly iFrames" ... ... <看更多>