title: jquery selector "contains" making error while using in chrome
body: <p>I want to find whether the text in the input field contains any space character.For that I use the statement</p>
  
  <pre><code>$("#myTextBox").val().trim().contains(" ");
  </code></pre>
  
  <p>this should return <code>true</code> if the text in the textbox contains any space. But the problem is this is not working in Chrome and IE. It returns an error <code>Uncaught TypeError: undefined is not a function</code> in chrome's console. While in Firefox it is working fine.
  What would be the probable reason. Is it curable?</p>
  
  <p>Please find the jsfiddle <a href="http://jsfiddle.net/1L1pf7c7/3/" rel="nofollow">http://jsfiddle.net/1L1pf7c7/3/</a></p>