如何在Chrome控制台中单击网页中的按钮？

Question

I used

Method 1: $("button").click();
Cannot read property 'click' of null

Method 2: $("button").trigger("click");
Cannot read property 'trigger' of null

Answer 1

If your page doesn't reference jQuery, you can simply find the element by its ID using javascript and attach click event to it as follows:

document.getElementById('mainbar').addEventListener("click", function() 
{
    console.log('main bar clicked');
});

Using jQuery:

$('#buttonid').click();

Answer 2

如果ID和jQuery不可用的解决方案：

document.getElementsByTagName("button")[0].click();