js__typescript__pluralsight1/app/app.ts

function startGame() {
  // Starting a new game.
  const playerName: string = 'Audrey';
  logPlayer(playerName);

  const messagesElement: HTMLElement = document.getElementById('messages');
  messagesElement.innerText = 'Welcome to MultiMath! Starting a new game';
  console.log('Starting new game');
}

function logPlayer(name: string) {
  console.log(`New game starting for player: ${name}.`);
}

document.getElementById('startGame').addEventListener('click', startGame);