我的代码在控制台中运行，但不在 Tampermonkey 中

Question

I was practising coding using JavaScript in console. it works, but there is a problem in Tampermonkey

function name() {
  var console = document.querySelector('.className');
  let magic = console.childNodes;
  magic[0].innerHTML = '23213';
};
name();

Answer 1

make sure the line

// @match http://example.com/

is match your target URL

.childNodes return text and tagname so you can't always use .innerHTML , use .children instead.

Please don't use console as variable because it browser variable to output log in your browser

example working script for http://example.com

// ==UserScript==
// @name         example Userscript
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  go to http://example.com/ and see the result
// @author       You
// @match        http://example.com/
// @grant        none
// ==/UserScript==

function name() {
    var div = document.querySelector('div');
    let magic = div.children;
    magic[0].innerHTML = '23213';
    console.log('success!');
};
name();