@runat
在油猴脚本可以设置值为 document-start
, document-body
, document-end
等,表示脚本在网页生命周期的注入点,但是在不同生命周期运行多个不同的事件呢?参考stackoverflow
的答案:
// ==UserScript==
// @name _Show page start event timing
// @include http://YOUR_SERVER.COM/YOUR_PATH/*
// @run-at document-start
// ==/UserScript==
console.log ("==> Script start.", new Date() );
// 1ST PART OF SCRIPT RUN GOES HERE.
console.log ("==> 1st part of script run.", new Date() );
document.addEventListener ("DOMContentLoaded", DOM_ContentReady);
window.addEventListener ("load", pageFullyLoaded);
function DOM_ContentReady () {
// 2ND PART OF SCRIPT RUN GOES HERE.
// This is the equivalent of @run-at document-end
console.log ("==> 2nd part of script run.", new Date() );
}
function pageFullyLoaded () {
console.log ("==> Page is fully loaded, including images.", new Date() );
}
console.log ("==> Script end.", new Date() );
输出:
"==> Script start." 2014-10-09T01:53:49.323Z
"==> 1st part of script run." 2014-10-09T01:53:49.323Z
"==> Script end." 2014-10-09T01:53:49.323Z
"==> 2nd part of script run." 2014-10-09T01:53:49.385Z
"==> Page is fully loaded, including images." 2014-10-09T01:53:49.487Z
参考:https://stackoverflow.com/q/12045440/3258851