JSFiddle - React, Tailwind, and code Playground

by adamzr

HTML

<input type="checkbox" id="one"></input>
<input type="checkbox" id="one"></input>
<input type="checkbox" id="one"></input>
<div style="display: none;">At least 2 are checked</div>

JavaScript

$('input[type=checkbox]').change(function(){
    alert($('input:checked').size())
        if($('input:checked').size() > 1){
         $("div").show();   
    }
    else {
         $('div').hide()   
    }
})