JSFiddle - React, Tailwind, and code Playground

HTML

<div class="section">
  <input type="radio" name="q1" value="2"/>
  <input type="radio" name="q2" value="0"/>
  <input type="radio" name="q3" value="1"/>
  <input type="radio" name="q4" value="3"/>
</div>

JavaScript

$('.section').each(function(){
  var totalPoints = 0;
  $(this).find('input').each(function(){
    totalPoints += parseInt($(this).val());
  });
  alert(totalPoints);
});