title: JMeter loop variables
body: <p>I have test case in Jmeter (2.5.1).<br>
  I need to define a variable and then change its value in a while loop, basically:</p>
  
  <pre><code>isQuest = true;
  while(${isQuest}){
       Http Sampler
           Reg Exp Extractor -&gt; set the isQuest based on the result
  }
  </code></pre>
  
  <p>Because JMeter loads the User defined variables to the memory once at the beginning, it doesn't let me assign another value to the variable in the memory.</p>
  
  <p>What is the best way of overcoming this issue?</p>