title: How to get the console.log content as string in JavaScript
body: <p>I'm trying to get the console.log as string in pure JavaScript.
  My input is a script, which I'm not familiar with, and I want to collect all the messages in the console.log into a string.</p>
  
  <p>For example:</p>
  
  <pre><code>function doSomething(){
      console.log("start");
      console.log("end");
      var consoleLog = getConsoleLog();
      return consoleLog;
  }
  
  function getConsoleLog(){
      // How to implement this?
  }
  
  alert(doSomething());
  </code></pre>
  
  <p><a href="http://jsfiddle.net/EWWnn/">JSFiddle link</a></p>
  
  <p>Note that I do not need to alert the log - this is just a simple example of testing the functionality. I'll have to do some operations on the log's content.</p>