JSFiddle - React, Tailwind, and code Playground

HTML

<input type="checkbox" class="checkbox" name="one"/> one <br/>
<input type="checkbox" class="checkbox" name="two"/> two <br/>
<input type="checkbox" class="checkbox" name="three"/> three <br/>
<input type="checkbox" class="checkbox" name="four"/> four <br/>
<a href="" id="button">Get List</a>

JavaScript

$("#button").click(function(e) {
    e.preventDefault();
    var checkedItems = $(".checkbox:checked");
    var list = "";
    checkedItems.each(function(){ list += this.name + '\n' });

    alert(list);
});