title: In IE11, How to use console.log?
body: <p>Try to use <code>console.log()</code> But it's always printting <code>undefined</code>.</p>
  
  <p>Try to use the solutions like <a href="https://stackoverflow.com/questions/7424968/console-log-ie9-issue">Console.log IE9 issue</a>
  it does not work as well.</p>
  
  <p>In this <a href="http://code.tutsplus.com/articles/the-new-ie11-f12-tools--net-34039" rel="noreferrer">IE11 document</a>, there is the following sentence:
  <code>
  Last but not least, forget about console.log(). The new tools now support Tracepoints easily allowing you to monitor specific values the same way you would via console.log().
  </code></p>
  
  <p>What does that mean? How to use console.log to print variable in IE11?</p>
  
  <hr>
  
  <p>System: windows 7(<a href="https://gist.github.com/magnetikonline/5274656" rel="noreferrer">VirtualBox IE images</a>)</p>
  
  <p>IE version:11</p>
  
  <hr>
  
  <p>It seems <code>console.dir()</code> is an option, but how about <code>console.log()</code>? It is in the <a href="http://msdn.microsoft.com/en-us/library/ie/hh772183%28v=vs.85%29.aspx" rel="noreferrer">document</a>, but why does not take effect?</p>