typescript 如何在打字稿中声明 Map 类型？

How to declare a Map type in typescript?

提问by roger

I want to declare a type like this:

我想声明一个这样的类型：

interface DependData {[key: string]: string};

but with error like this:

但有这样的错误：

Statements are not allowed in ambient contexts

回答by David Sherret

The error message you are describing occurs in a definition file.

您描述的错误消息出现在定义文件中。

To make this work, you need to use the proper syntax and remove the semi-colon at the end of your interface declaration:

为了使这项工作，您需要使用正确的语法并删除接口声明末尾的分号：

interface DependData {
    [key: string]: string;
}