Question

我是一个完整的新手，我想从“p”标签中取出一个文本并将其放在另一个“p”标签中，这样当我点击我的扩展名时，我会看到正在显示的两个文本。我做错了什么？我怎样才能避免将来出现类似的错误？

popup.html：

<!DOCTYPE html>
<html>
      <head>
        <script type="text/javascript" scr= "popup.js"></script>
      </head>
      <body>            
        <p id="firstText">this is the text to be repeated</p> 
        <p id= "secondText"></p>        
     </body>   
</html>

popup.js：

document.addEventListener('DOMContentLoaded', function () {

 var test= document.getElementById("firstText").innerHTML;
 document.getElementById("secondText").innerHTML=test;

});

manifest.json：

{
  "manifest_version": 2,
  "name": "test",
  "description": "useless",
  "version": "1.0",
   "background": {
      "scripts": [ "popup.js"],
      "persistent": false
   }, 
  "content_scripts": [
    {
      "matches": ["http://*/*"],  
      "js": ["popup.js"]
    }
    ], 
    "permissions": [
    "activeTab","tabs", "http://*/*"
  ],
  "browser_action": {
    "default_popup": "popup.html"
  }
}

Answer 1

使用此HTML进行弹出式广告：您输错了 src

<!DOCTYPE html>
<html>
      <head>
        <script type="text/javascript" src= "popup.js"></script>
      </head>
      <body>            
        <p id="firstText">this is the text to be repeated</p> 
        <p id= "secondText"></p>        
     </body>   
</html>

Chrome扩展程序更改popup.html文本

1 个答案: