JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-2.2.3.min.js"></script>
<input type="checkbox" value="1" /> Um
<input type="checkbox" value="2" /> Dois
<input type="checkbox" value="3" /> Tres

<ul id="lista"></ul>

JavaScript

$(function() {  
	$('input[type=checkbox]').click(function(){  	
    var $lista = $('#lista');
    var value = $(this).val();
    var $item = $('<li/>').attr('data-id', value).html(value);        
		if(this.checked) {
    	$item.appendTo($lista);
    } else {
      $lista.find('li[data-id='+ value +']').remove();
    }
	});
})