title: need regex to get string before and after sepearted by a colon
body: <p>I am having strings like following in javascript</p>
  
  <pre><code>lolo dolo:279bc880-25c6-11e3-bc22-3c970e02b4ec
  </code></pre>
  
  <p>i want to extract the string before : and after it and store them in a variable. I am not a regex expert so i am not sure how to do this.</p>