JSFiddle - React, Tailwind, and code Playground

HTML

<form action="demo_form.asp" method="get">
      <input type="checkbox" name="vehicle" value="Bike" class="test"> I have a bike<br>
      <input type="checkbox" name="vehicle" value="Car" checked class="test"> I have a car<br>
      <input type="submit" value="Submit">
    </form>

JavaScript

$(document).ready(function(){
        if($(".test").is(':checked'))
            $(".test").attr("disabled", false);
        else
            $(".test").attr("disabled", true);
    });