JSFiddle - React, Tailwind, and code Playground

HTML

new TODO item:<input id="txtin" type="text" />
<button id="btnin">Add</button>
<button id="btn-remove">Remove</button>
<hr />

JavaScript

$( "#btnin" ).click(function() {
    $( "html" ).append( '<span><input type="checkbox">' + $("#txtin").val() + '<br /></span>' );
});

$( "#btn-remove" ).click(function() {
    $('[type="checkbox"]:checked').parent().remove();
});