title: Check for the pipe symbol with Regex
body: <p>The pipe symbol <strong><code>|</code></strong> is used in Regular Expression as a sort of 'either' statement, far as I know. Either this, either that, or that, or that, etc...</p>
  
  <p>However, I wish to check a string with a regular expression, for the presence of this symbol. I've tried escaping it, but that doesn't seem to work.</p>
  
  <p>How do I do this, especially if I'm already checking for a number of symbols to be present, like #, &amp;, @, etc...</p>