如何在控制台中显示闭包函数的内容？ #javascript

Question

JAVASCRIPT关闭你好呀，我的 javascript 代码遇到了一些问题，也许您可以帮助解决有关闭包的问题。这是我的代码：

function seatReservation(aSeat) { 
    let secret = aSeat;
    return function (){
        return secret;
    }
};

class Reservations { 
    #aMailadress;
    #mySeatList;

    constructor(aMailadress){
        this.#aMailadress = aMailadress;
        this.#mySeatList = [];
    } 

    addSeatReservation(aSeat){
        this.#mySeatList.push(aSeat);
    }

    printReservations(){
        this.#mySeatList.forEach(seat => {
            console.log(seat);
        });
    }
};

// Test
const list = new Reservations('peter@mail.com');
list.addSeatReservation(new seatReservation('D3'));
list.addSeatReservation(new seatReservation('F6'));
list.printReservations();

控制台的输出是： [（匿名函数）] [（匿名函数）]

预期输出： D3 F6

谁能帮忙？谢谢

Answer 1

new seatReservation('D3') 创建了一个函数，当被调用时，return 将 secret 传递给它。例如，您可以这样做：console.log(seat());。您调用该函数，从而从闭包中检索数据。

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