Chrome扩展程序可修改Twitter的innerHTML

Question

I am trying to make a chrome extension that changes the names of my twitter users as they appear on my feed. When I try in the google chrome console to do:

$("#fullname js-action-profile-name show-popup-with-id").html("Hello!");

The result is just an empty array "[]".

Also when I type:

document.getElementById("#fullname js-action-profile-name show-popup-with-id").html("Hello!");

I get the error: "Cannot set property of "html" of null".

Anyone know what I am doing wrong?

Answer 1

You would want to use something like this:

var twitterNames = $(".fullname.js-action-profile-name.show-popup-with-id");

Or something like this:

var twitterNames = document.getElementsByClassName("fullname js-action-profile-name show-popup-with-id");

Once you have the array of all the elements on the page you can index into the array to change them.