JSFiddle - React, Tailwind, and code Playground

by Sean Wessell

HTML

<input type="radio" value="1" name="radio_name" onchange="getRadioCheckedValue('radio_name')"/>
<input type="radio" value="2" name="radio_name" onchange="getRadioCheckedValue('radio_name')"/>
<input type="radio" value="3" name="radio_name" onchange="getRadioCheckedValue('radio_name')"/>
<input type="radio" value="4" name="radio_name" onchange="getRadioCheckedValue('radio_name')"/>

JavaScript

function getRadioCheckedValue(radio_name) {
      var group = document.getElementsByName(radio_name);

      for (var i = 0; i < group.length; i++) {
          if (group[i].checked == true) {
              return group[i].value;
          }
      }
  }