title: Finding just one or more comma in a string with ColdFusion
body: <p>How can I detect if a string value only consists of one or more commas and nothing else. The correct value should be something like: ABC,BVC,BNM but sometimes I get value like: , or ,,, or ,, and this is not allowed. How can I detect that a string only have one or more commas and then I can create a warning to the user and stop the process.</p>
  
  <p>Thank you</p>