title: Simple feeder in Gatling without using a csv file
body: <p>How can I create a simple feeder in Gatling without using a csv file?
  I have tried scripts from the Gatling documentation. 
  I have seen one example in the documentation </p>
  
  <pre><code>val random = new util.Random
  val feeder = Iterator.continually(Map("email" -&gt; random.nextString(20) + "@foo.com"))
  </code></pre>
  
  <p>I don't understand the above code. </p>
  
  <p>I tried a script with a feeder that uses a csv file and was executed successfully. Instead of feeding data from a csv file, how do I write a feeder that can take a defined value. </p>