JSFiddle - React, Tailwind, and code Playground
by dima_k
HTML
<fieldset>
<legend>Which color do you prefer?</legend>
<ul>
<li>
<input type="radio" value="red" name="color" id="colorRed" />
<label for="colorRed">Red</label>
</li>
<li>
<input type="radio" value="green" name="color" id="colorGreen" />
<label for="colorGreen">Green</label>
</li>
</ul>
</fieldset>
JavaScript
var colors = document.getElementsByName('color');
for(var i = 0; i < colors.length; i++){
alert(colors[i].value);
}