在whatsapp网站（javascript）的联系人列表中单击联系人之一

Question

I try to use JavaScript to perform a click action to click a contact form contact list in order to open a chat in Whatsapp Web.

I use normal click action to click but not working, like

var div = document.querySelector('.infinite-list-item')[0];
div.click();

And i know whatsapp web is made by react js, ant special to perform a click?

I even use jQuery click() function but still not working, what should I use?

Answer 1

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You're using document.querySelector() and then trying to access it as if it was a data structure.

document.querySelector() will return only one DOM element. You should try using document.querySelectorAll()[0] if you want to put all the contacts in a structure.

Solution:

    var itemList = document.querySelectorAll('.infinite-list-item');
    itemList[0].click();

Also, this would work as an alternative solution ( though using querySelector instead of querySelectorAll to target a class name that is used more than once is not at all recommended ):

    var div = document.querySelector('.infinite-list-item');
    div.click();