如何从typescript中的字符串获取枚举类型？

我有一个枚举：

export enum Suit {
  SPADES = "SPADES", 
  HEARTS = "HEARTS", 
  DIAMONDS = "DIAMONDS", 
  CLUBS = "CLUBS"
}

然后当我尝试使用它时：

for(let suit in Suit) {
    console.log(suit);
    console.log(typeof suit);
    const theSuit: Suit = Suit[suit];
}

VS code在

处给出编译错误，Suit

表示：

类型“string”不可分配给类型“Suit”

typescript版本是3.2.2

---

如何从字符串中获取

Suit

的类型？

您可以使用类型断言告诉编译器

Suit

肯定是

Suit

的键

export enum Suit {
    SPADES = "SPADES", 
    HEARTS = "HEARTS", 
    DIAMONDS = "DIAMONDS", 
    CLUBS = "CLUBS"
}

for(let suit in Suit) {
    console.log(suit);
    console.log(typeof suit);
    const theSuit: Suit = Suit[suit as keyof typeof Suit];
}