TypeError:无法读取属性' click'的null [英] TypeError: Cannot read property 'click' of null

问题描述

我一直在Twitter上使用这些代码大量关注/取消关注/收藏/不喜欢这些代码；

I have been mass following / unfollowing / favoriting / unfavoriting on twitter with these codes ;

$('button.follow-button').click();
$('button.ProfileTweet-actionButtonUndo').click();
$('a.favorite').click();

我在网上找到了一些无法使用的代码，并试图对其进行修复，因此它们现在几乎可以正常工作了.唯一的事情是转到google chrome上的页面，按f12键，打开控制台并运行命令.

I found some not-working codes online and tried to fix, so they are nearly working now. The only thing is to go to the page on google chrome, press f12 , open console and run the command.

所以现在，我想在Vine中使用相同的系统.谷歌浏览器有一个扩展可以使用vine( https://client.vineclient.com/)和我正在尝试使用它，因为原始网页(vine.co)甚至都没有用.

So now, I wanted to use the same system in Vine. There"s an extension for google chrome to use vine ( https://client.vineclient.com/ ) and I am trying to use it because original webpage ( vine.co ) is not even useful.

twitter与this的唯一区别是，在藤本客户端的^ followers ^部分中，页面上弹出了一个窗口.而且我不知道它是否检测到按钮.

The only difference between twitter and this, is that, in vine client for ^followers^ section, an pop-up comes in the page. And I don!t know if it detects the buttons.

因此，我尝试从原始页面单击的按钮的代码((我使用开发人员工具/元素使用了它)

So , the code of the button I am trying to click from original page , ( I took it using developer tools / elements )

<div class="user">
<img alt="Tuğçe Nur TEKİN" class="avatar" src="http://v.cdn.vine.co/r/avatars/3C2E4F40F11066473630650847232_pic-r-1397241239141e51579937f.jpg.jpg?versionId=ttIz4CExCjW_4TEnxYbnehPPpXRyzMco">
<div class="wrapper">
<a class="username" 
href="https://client.vineclient.com/explore/users/1066473613911363584">
Tuğçe Nur TEKİN
</a>
</div>
<a class="button follow" data-id="1066473613911363584">
<i class="icon">
</i>
</a>
</div>

要单击的东西在这里:

当我手动单击时，它变为:

When I manually click, it changes into this :

<a class="button unfollow" data-id="1066473613911363584"><i class="icon"></i></a>

还有我用来尝试单击的命令

And the command I use to try to click

$(".a.follow").click();

我得到的错误，

TypeError: Cannot read property 'click' of null

我该如何解决?顺便说一下，在这些代码中，我实际上找不到任何^ button ^代码.谢谢！

How can I fix that? By the way, in these codes, I couldn"t find actually any ^button^ codes.. Thanks!

更新

1. http://prntscr.com/3pmo2i
2. http://prntscr.com/3pmoyk
3. http://prntscr.com/3pmpym

推荐答案

当我同时使用开发人员工具从其他地方(例如Selenium)在网页上运行javascript时，遇到了此问题.尝试关闭开发人员工具并运行脚本.

I had encountered this problem, when I run javascript on the webpage from elsewhere (eg. Selenium) while simultaneously using Developer Tools. Try closing Developer Tools and run the script.

这篇关于TypeError:无法读取属性' click'的null的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！