JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" required />

JavaScript

var attr = $("input").attr("required");
var attrb =  $("input").attr("required") === "required"; 
var prop = $("input").prop("required");
$("body").append("<br>attr: " + attr + "<br>prop: " + prop  + "<br>attrb: " + attrb );