let deck = {
suits: ["hearts", "spades", "clubs", "diamonds"],
cards: Array(52),
createCardPicker: function() {
// NOTE: the line below is now an arrow function, allowing us to capture "this" right here
return () => {
let pickedCard = Math.floor(Math.random() * 52);
let pickedSuit = Math.floor(pickedCard / 13);
return {suit: this.suits[pickedSuit], card: pickedCard % 13};
}
}
}
let cardPicker = deck.createCardPicker();
let pickedCard = cardPicker();
alert("card: " + pickedCard.card + " of " + pickedCard.suit);the tutorial says that the type of this and this.suits [pickedSuit] is any, will report an error. Then a solution is provided
function f(this: void) {
// make sure `this` is unusable in this standalone function
}the tutorial says that the this parameter here is a false parameter, how to understand why defining the type of this as void will not report an error?
