Question

我想创建一个以枚举为成员的元组。

enum Category {
    Medieval,
    Fantasy,
    SciFi,
    Pirates
}

let games: [string, string, boolean, enum] = [
    { name: 'Star Wars: Imperial Assault', company: 'Fantasy Flight', available: true, category: Category.SciFi },
    { name: 'Game of Thrones: Second Edition', company: 'Fantasy Flight', available: false, category: Category.Fantasy },
    { name: 'Merchans and Marauders', company: 'Z-Man Gaming', available: true, category: Category.Pirates },
    { name: 'Eclipse', company: 'lautapelit', available: false, category: Category.SciFi }
]

VisualStudio在元组中的枚举值返回错误

预期输入

TypeScript playground link

Answer 1

试试这个

enum Category {
    Medieval,
    Fantasy,
    SciFi,
    Pirates
}

function getAllGames() {

    let games: {name:string, company:string, available:boolean, category:Category}[] = [
        { name: 'Star Wars: Imperial Assault', company: 'Fantasy Flight', available: true, category: Category.SciFi },
        { name: 'Game of Thrones: Second Edition', company: 'Fantasy Flight', available: false, category: Category.Fantasy },
        { name: 'Merchans and Marauders', company: 'Z-Man Gaming', available: true, category: Category.Pirates },
        { name: 'Eclipse', company: 'lautapelit', available: false, category: Category.SciFi }
    ]

    // de functie GetAllGames returned de let array 'games' zodat deze array ergens anders gebruikt kan worden.
    return games;
}

Answer 2

实际上要使用元组来执行此操作，看起来像这样...

enum Category {
  Medieval,
  Fantasy,
  SciFi,
  Pirates
}

let games: [string, string, boolean, Category][] = [
  [ 'Star Wars: Imperial Assault', 'Fantasy Flight', true, Category.SciFi ],
  [ 'Game of Thrones: Second Edition', 'Fantasy Flight', false, Category.Fantasy ],
  [ 'Merchans and Marauders', 'Z-Man Gaming', true, Category.Pirates ],
  [ 'Eclipse', 'lautapelit', false, Category.SciFi ]
];

您也可以在声明“游戏”之前将元组类型删除，以使其更简洁...

type Game = [string, string, boolean, Category];

然后写

let games: Game[] = [
  // Games go here
];

是否可以在元组中添加枚举？

2 个答案: