JSFiddle - React, Tailwind, and code Playground

by Robert Barros

HTML

<input type="text" value="" />
<input type="text" value="" />
<input type="text" value="" />
<input type="text" value="" />
<input type="text" value="" />

JavaScript

var empty = $('input:text').filter(function() { return $(this).val() == ""; });

alert(empty.length);

if(empty.length >3){
        alert("you must enter data in at least two inputs");
}