JSFiddle - React, Tailwind, and code Playground

by Sergey Aleshin

HTML

<h2 class="form-signin-heading">Please wait 5 seconds and sign in</h2>
        <input type="password" id="password" class="input-block-level" placeholder="Password">
        <button class="btn btn-large btn-primary" id="check">Sign in</button>
        <div id="counter"></div>

JavaScript

var object = "";var flag = "";var _0x405b = ["SayHello", "GetCount", "The flag is : ", "NO"];function NewObject(_0x289ax2) {    var _0x289ax3 = 0;    this[_0x405b[0]] = function(_0x289ax4) {        _0x289ax3++;        object = _0x289ax2 + _0x289ax4    }    ;    this[_0x405b[1]] = function() {        return _0x289ax3    }}var obj = new NewObject(_0x405b[2]);function count(container) {    container.innerHTML += ".";    if (container.innerHTML.length == 5) {        obj.SayHello(_0x405b[3]);    }}function onLoad() {    var container = document.getElementById('counter');    setInterval(function() {        count(container)    }, 1000);}

document.getElementById("check").onclick = function {
	var data = document.getElementById("password").value;    if (data != object.substr(14)) {        alert("Not a flag");    } else {        alert("The flag");    }}_0x405b = ["SayHello", "GetCount", "The flag is : ", "did_you_immediately_notice?"];