ViolentMonkey script for LPU UMS autologin

autologin.js

// ==UserScript==
// @name         LPU autologin
// @namespace    Violentmonkey Scripts
// @version      1.0.0
// @match        https://ums.lpu.in/*
// @grant        none
// @author       neohbz
// @description  autologin
// ==/UserScript==

const sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms));

(async () => {
  if (window.location.href === 'https://ums.lpu.in/') {
    window.location.href = 'https://ums.lpu.in/lpuums/';
    return;
  }

    await sleep(100);
    const happening = document.getElementById('Happeningleft');
    if (happening) happening.remove();

    const row = document.querySelector('.ums > .container-fluid > .row');
    if (row) {
      row.style.display = 'flex';
      row.style.justifyContent = 'center';
      row.style.alignContent = 'center';
    }

  if (window.location.href === 'https://ums.lpu.in/lpuums/') {

    const user = document.getElementById('txtU');
    const pass = document.querySelector(
      '#UpdatePanel1 > .login-inner-form > .form-group.form-box.clearfix > input'
    );

    if (user) user.value = '';
    if (pass) pass.value = '';
  }
})();