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JavaScript Object-Oriented JavaScript: Challenge Rendering the Game Connecting with the DOM Solution

Alexandra Lukinicheva
Alexandra Lukinicheva
7,901 Points
Posted by Alexandra Lukinicheva
Alexandra Lukinicheva
7,901 Points

Uncaught TypeError: Cannot set property 'display' of undefined. Why does 'this' come out undefined?

I think I followed this step closely, but not sure why the console throws an error on click...

const game = new Game(); /**

  • Listens for click on #begin-game and calls startGame() on game object */ document.getElementById('begin-game').addEventListener("click", () =>{ game.startGame(); this.style.display = 'none'; document.getElementById('play-area').style.opacity = '1'; });

Why does 'this' come out undefined?

Alexandra Lukinicheva
Alexandra Lukinicheva
7,901 Points
Alexandra Lukinicheva
Alexandra Lukinicheva
7,901 Points

I see that issue was that I'm using an arrow function, but I still would like to know why it doesn't work with the arrow function?

1 Answer