title: RegExp for Blank, Tabs or blank spaces in textbox
body: <p>I need the help of the experts on this forum.</p>
  
  <p>I would like to come up with a RegEx (javascript) to validate a textbox which has any blank spaces in it, any blank tabs in it, and also check for an empty textbox?</p>
  
  <p>ie. </p>
  
  <pre><code>alert("Accepted")
  ------------------------------
  Jameswithsometext
  Billy Jean
  
  alert("Not accepted")
  ------------------------------
  - inadvertenly typed blank spaces
  - inadvertenly typed tabs
  - blank textbox
  </code></pre>