title: how to expand toggle using javascript?
body: <p>I am trying to expand toggle class using JavaScript but its not working, i am using setAttribute('aria-expanded', 'true') its giving error set-attribute is null. </p>
  
  <pre><code>(document.getElementById("collapseid")as HTMLTextAreaElement).setAttribute('aria-expanded', 'true')
  </code></pre>
  
  <p>How can we expand the toggle area with div id using JavaScript and without use of click. i am not sure set attribute will solve the issue, i tried to set the attribute true using Edit Html option but it dint work.
  unless i click on the toggle button its not expanding, please let me know how to achieve this </p>