dom-login.js

const div = document.getElementById('paragraph');
const btn = document.getElementById('btn');
const username = document.getElementById('username');
const password = document.getElementById('password');
const p = document.createElement('p');
// const body = document.querySelector('body');
function allwork() {
  if ((username.value.trim() === '') || (password.value.trim() === '')) {
    p.textContent = 'Fill All inputs to login please!';
    div.appendChild(p);
  } else {
    username.value = username.value.trim();
    password.value = password.value.trim();
    const d = {
      username: username.value,
      password: password.value
    };
    login(JSON.stringify(d), result => {
      p.textContent = result;
      div.appendChild(p);
    });
    p.textContent = '';

  }
}
btn.addEventListener('click', event => {
  allwork();
});
function keyy() {
  if(event.keyCode == 13 ){
    allwork();
  }
}