JSFiddle - React, Tailwind, and code Playground

HTML

<input type="radio" name="LanguageSelect"  id="LanguageSelect" value="English" checked="checked">English &nbsp;&nbsp;

<input type="radio" name="LanguageSelect"  id="LanguageSelect" value="Tamil">Tamil &nbsp;&nbsp;
<input type="radio" name="LanguageSelect"  id="LanguageSelect" value="Hindi">Hindi</div><br>
<input type="button" class="button5" value="Continue" onclick="alertValue()" />

JavaScript

alertValue = function(){
    var radios = document.getElementsByTagName("input");

    for (var i=0;i<radios.length;i++)
        if (radios[i].checked)
            alert(radios[i].value);
    
}