JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<form action="" method="post">
	<input type="checkbox" name="test" id="test" /><br />
	<input type="submit" name="submit" id="submit" value="Submit enabled/disabled" disabled="disabled" />
</form>

JavaScript

$('#test').click(function(){
	if($(this).is(':checked')){
		$('#submit').removeAttr('disabled');
	}else{
        $('#submit').attr('disabled', 'disabled');
    }
});