关于setTimeout在GM

最新推荐文章于 2021-04-28 17:30:26 发布

原创最新推荐文章于 2021-04-28 17:30:26 发布 · 592 阅读

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本文介绍了一种使用JavaScript实现定时自动点击页面上特定按钮的方法。通过改进的代码示例，解决了仅对首个元素生效的问题，并确保了按设定间隔依次触发所有目标按钮。

Question:

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I've tried to develop a simple Greasemonkey script in javascript. How can I automatically simulate a click on specific button with an interval between each click?

Here's my code:

var Next=document.getElementsByClassName("SubmitButton");

for (var i=0, c = Next.length; i<c; i++)
{
    Next[i].click();
    setTimeout('Next[i].click()',3000);
}

The problem is that the code only clicks on the first value of Next. Why?

Answer:

var Next = document.getElementsByClassName("SubmitButton");

for (var i = 0, c = Next.length; i < c; i++) {

//Next[i].click();

  (function(element, time){

    setTimeout(function(){ element.click(); }, time);

  })(Next[i], 3000 * i);

}