title: Regex to match three words separated by two commas
body: <p>I am trying to get at least three words  separated by two commas.I have so far managed to match two words with one comma with </p>
  
  <pre><code>/([A-z]|[0-9])(,{1})([A-z]|[0-9])/ 
  </code></pre>
  
  <p>but how can I add a comma and a word to this.I have tried repeating the same but did not work.</p>