I have an html with javascript inside that uses rails partial. I couldn't get the element from rails partial vs if I put the button without using rails partial I am able to get it working.

<%= render 'common_component_a', text: 'hello world', elmid: 'grab-this'%>
<script>
  if (document.getElementById('grab-this')) {
    document.getElementById('grab-this').onclick = function() {
     ...
    };
  }
</script>

Inside my common_component_a I have a section with some css styles

<section>
  <span> Part A </span>
  <button id=<%= elmid %>><%= text %></button>
</section>