javascript - Chrome扩展程序在弹出div中传递和打印变量

编辑：刚刚找到答案：Chrome Extension how to send data from content script to popup.html

我想在网站上计算h2元素，然后在弹出窗口中打印变量。

我实际上可以提醒这个变量，但不能让它传递给弹出窗口。

的manifest.json

{
  "manifest_version": 2,

  "name": "Getting started example",
  "description": "",
  "version": "1.0",

  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },

  "permissions": [
    "activeTab",
    "storage",
  ],

}

popup.html

<!doctype html>

<html>
  <head>



  </head>

  <body>

  <span>h2:<span><span id="log"></span>



     <script src="popup.js"></script>

  </body>
</html>

popup.js

chrome.tabs.executeScript(null, { file: 'content.js' },function(result){

document.getElementById('log').innerHTML = (result);

});

content.js

var result=document.getElementsByTagName("h2").length;

Chrome扩展程序在弹出div中传递和打印变量

0 个答案: