Question

在TypeScript中，类型声明可以允许动态对象属性吗？

class Animal {
    name: string;
    [everything else]: any;
}

let animal = <Animal>{ name: "Kitty", type: "cat" };

animal.name; // Would be treated as string

animal.type; // Would allow compilation and be treated as any

我希望动态地允许这些额外的属性，而不必将它们添加到类型声明中。使用TypeScript 1.8.2。

Answer 1

是的，就像这样：

class Animal {
    name: string;
    type?: any;
}

但我建议使用类似的枚举：

enum AnimalType {Cat, Dog, ...};

class Animal {
    name: string;
    type?: AnimalType;
}

TypeScript动态对象属性

1 个答案: