script.js

'use strict';

let secretNumber = Math.trunc(Math.random() * 20) + 1;
let score = 20;
let highscore = 0;

const displayMessage = function (message) {
  document.querySelector('.message').textContent = message;
};

document.querySelector('.check').addEventListener('click', function () {
  const guess = Number(document.querySelector('.guess').value);
  console.log(guess, typeof guess);

  // When there is no input
  if (!guess) {
    // document.querySelector('.message').textContent = ' ';
    displayMessage('⛔No number!');

    // When player wins
  } else if (guess === secretNumber) {
    displayMessage(' 🎉 Correct Number');
    document.querySelector('.number').textContent = secretNumber;
    document.querySelector('body').style.backgroundColor = '#60b347';
    document.querySelector('.number').style.width = '30rem';

    if (score > highscore) {
      highscore = score;
      document.querySelector('.highscore').textContent = highscore;
    }

    // When guess is different
  } else if (guess !== secretNumber) {
    if (score > 1) {
      displayMessage(guess > secretNumber ? ' 📈 Too high' : ' 📈 Too low');
      score--;
      document.querySelector('.score').textContent = score;
    } else {
      displayMessage('💣 You lost the game');
      score--;
      document.querySelector('.score').textContent = 0;
    }
  }
});

//Again button is ready to use.(on call)
// Maybe you can look up the "window.location.reload"

document.querySelector('.again').addEventListener('click', function () {
  score = 20;
  secretNumber = Math.trunc(Math.random() * 20) + 1;

  displayMessage('Start guessing...');
  document.querySelector('.score').textContent = score;
  document.querySelector('.guess').value = '';
  document.querySelector('.number').textContent = '?';

  document.querySelector('body').style.backgroundColor = '#222';
  document.querySelector('.number').style.width = '15rem';
});