TypeScript动态对象属性

Question

在TypeScript中，类型声明可以允许动态对象属性？

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 

我想这些额外的属性被允许动态，而不必将它们添加到类型声明。使用TypeScript 1.8.2。

Answer 1

是的，是这样的：

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

但我会建议使用一个枚举类型这样的：

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

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