javascript - 无法使用 Greasemonkey 单击此超链接

Question

我有一个按钮(超链接)及其等效的 HTML 代码:

<span title="Enroll in Classes" class="SSSBUTTON_CONFIRMLINK">
<a class="SSSBUTTON_CONFIRMLINK" href="javascript:submitAction_win0(document.win0,'DERIVED_REGFRM1_LINK_ADD_ENRL$118$');" tabindex="202" ptlinktgt="pt_peoplecode" id="DERIVED_REGFRM1_LINK_ADD_ENRL$118$" name="DERIVED_REGFRM1_LINK_ADD_ENRL$118$">Proceed to Step 2 of 3</a>
</span>

我想在页面加载 10 秒后单击按钮，我使用以下代码:

// ==UserScript==
// @name        Add to cart
// @namespace   Class
// @description Script to add to cart
// @include     http://go.oasis.com/add/?STRM=2141
// @version     1
// @grant       none
// ==/UserScript==

setInterval (clickOnProceedButton, 10 * 1000)

function clickOnProceedButton () {
    var targSubmit  = $("#DERIVED_REGFRM1_LINK_ADD_ENRL$118$");
    var clickEvent  = document.createEvent ('MouseEvents');
    clickEvent.initEvent ('click', true, true);
    targSubmit[0].dispatchEvent (clickEvent);
}

上面的脚本不工作，不点击按钮。有人可以指出这里有什么问题吗？

编辑: 我在控制台中收到以下错误

ERROR: Execution of script 'Add to cart' failed! Object [object global] has no method 'clickOnProceedButton'
TypeError: Object [object global] has no method 'clickOnProceedButton'
    at Object.eval (unknown source)), 25:14)
    at Object.eval (unknown source)), 27:4)
    at ag (unknown source), 190:4)
    at K (unknown source), 190:46)
    at o (unknown source), 456:2)
    at U (unknown source), 460:85)
    at R (unknown source), 229:40)

提前致谢!

Answer 1

在 Google Chrome 中完美运行，但在 IE8 中运行不佳

JSFiddle

HTML:

<a  href="https://google.com"  id="DERIVED_REGFRM1_LINK_ADD_ENRL$118$" >Proceed to Step 2 of 3</a>

JS:

function clickOnProceedButton () {
var targSubmit  =  document.getElementById("DERIVED_REGFRM1_LINK_ADD_ENRL$118$");
var clickEvent  = document.createEvent('MouseEvents');
clickEvent.initEvent ('click', true, true);
targSubmit.dispatchEvent(clickEvent);

可能对你有帮助。