JSFiddle - React, Tailwind, and code Playground

HTML

<input type="checkbox" name="a" id="i1" />
<input type="checkbox" name="a" id="i2" />
<input type="checkbox" name="a" id="i3" />

JavaScript

$(document).ready(function(){   
    $('input[name="a"]').on('change', function(){
       alert($(this).val()); 
    });
});