TypeScript的哈希表和带破折号的键

Question

Is it possible to declare a hashtable which includes keys with a dash in TypeScript?

Here's the code i've tried:

export interface ImapMessageHeader {
    'mime-version': string[];
    received: string[];
    [index: string]: string[];
}

From which i receive the following error:

Expected identifier in property declaration

The last declaration defining the index type allows me to call any string key, but i can't explicitly define the ones i want to use.

Thanks!

Answer 1

This works for me in TypeScript 0.9.5. The issue is marked as close too.

interface Foo
{
    "a-1": string;
}

var f: Foo = { "a-1": "hello" };

Answer 2

尚未支持接口声明和类型文字中的引用属性名称，但我相信它们将在未来版本中添加。