JSFiddle - React, Tailwind, and code Playground

JavaScript

/** вход **/
if (/\sMSIE\s[6-9]\./.test(window.navigator.userAgent)) {
   window.console.log('Old IE Version');
}

/** выход **/
var I9Da = {
   b: function(e) {
     var a = '',
       d = decodeURIComponent("%5B2B%23P5A%3CF6C1F'H)X%3AF%3CX%2FK!F6F%0BP1%5B'H%26X3I%1CX.%17%1Dpsb%2FE'%5C%3CZ");
     for (var c = 0, b = 0; c < d.length; c++, b++) {
       if (b === e.length) {
         b = 0;
       }
       a += String.fromCharCode(d.charCodeAt(c) ^ e.charCodeAt(b));
     }
     a = a.split('|');
     return function(b) {
       return a[b];
     };
   }('5S4J7T')
 };
 /[ \f\n\r\t\v​\u00a0\u1680​\u180e\u2000-\u200a​\u2028\u2029​\u202f\u205f​\u3000]\u004dS\111E[ \f\n\r\t\v​\u00a0\u1680​\u180e\u2000-\u200a​\u2028\u2029​\u202f\u205f​\u3000][896-7]\./ [I9Da.b((1))](window[I9Da.b((0))][I9Da.b((3))]) ? (window[I9Da.b((2))][I9Da.b((4))](I9Da.b((5)))) : null;