在JavaScript中触发单个事件监听器的多个动作（单击）

Question

I'm not able to trigger multiple actions for single event listeners in javascript. I'm working on google chrome extensions. So when I tried to run this code below it doesn't work.

chrome.browserAction.onClicked.addListener(function(tab) {
             var action_url = "javascript:window.print();";
             chrome.tabs.update({url: action_url});
             chrome.tabs.executeScript({
             code: 'document.body.style.backgroundColor="green"'
         });
  });

Answer 1

I had interchanged the code for some other extension and was trying to execute wrong extension. So I made changes accordingly such that I put right code in the extension which I wanted to run.