JSFiddle - React, Tailwind, and code Playground

HTML

<form name="myform">
    <input type=text name=input1 value=""/>
</form>

JavaScript

function setCookie(key, value) {
            var expires = new Date();
            expires.setTime(expires.getTime() + (1 * 24 * 60 * 60 * 1000));
            document.cookie = key + '=' + value + ';expires=' + expires.toUTCString();
        }

        function getCookie(key) {
            var keyValue = document.cookie.match('(^|;) ?' + key + '=([^;]*)(;|$)');
            return keyValue ? keyValue[2] : null;
        }

 $(document).ready(function() {
     setCookie("input1",'1');
     alert(getCookie("input1"));
      document.myform.input1.value = getCookie("input1");
 });