title: Jmeter json path extractor - How to Remove [ ] from extracted value
body: <p>From <a href="/questions/tagged/json" class="post-tag" title="show questions tagged &#39;json&#39;" rel="tag">json</a></p>
  
  <pre><code>token_id="token_id":"82903430-f9b3-4f4b-9efa-ee1b991cb735"
  </code></pre>
  
  <p>I am extracting <code>token_id</code> using <a href="/questions/tagged/json" class="post-tag" title="show questions tagged &#39;json&#39;" rel="tag">json</a>path extractor <code>$..token_id</code>.</p>
  
  <p>And then using the variable in next post request, but it's showing extra brackets in call</p>
  
  <pre><code>"token_id":["82903430-f9b3-4f4b-9efa-ee1b991cb735"]
  </code></pre>