你如何从`@types` typescript 2.0 导入类型定义
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/39818429/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How do you import type definitions from `@types` typescript 2.0
提问by michael
I'm using typescript 2.0 with the lastest [email protected]build process.
我正在使用带有最新[email protected]构建过程的typescript 2.0 。
I installed the google-maps types like this:
我安装了这样的谷歌地图类型：
npm install @types/google-maps --save-dev --save-exact
npm install @types/google-maps --save-dev --save-exact
and I'm trying to import some of the type definitions into my code like this
我正在尝试将一些类型定义导入到我的代码中
/// <reference types="google-maps" />
import { LatLng, LatLngBounds } from 'google-maps';
but I get this typescript error:
但我收到了这个打字稿错误：
./node_modules/@types/google-maps/index.d.ts has no exported member 'LatLng'
./node_modules/@types/google-maps/index.d.ts has no exported member 'LatLng'
and if I look in the source, I actually find the definition in
如果我查看源代码，我实际上会在其中找到定义
./node_modules/@types/google-maps/node_modules/@types/googlemaps/index.d.ts
./node_modules/@types/google-maps/node_modules/@types/googlemaps/index.d.ts
回答by Ropez
Add a reference to the types package in the file tsconfig.jsonin the root folder of your project:
tsconfig.json在项目根文件夹中的文件中添加对 types 包的引用：
"types": [
"google-maps"
]
Don't import anything in your source files, the types are globally defined.
不要在源文件中导入任何内容，类型是全局定义的。
回答by jifeng.yin
The importonly works for the current package, not its dependencies.
该import只适用于当前的包，而不是它的依赖性。
So you need to import { LatLng, LatLngBounds } from 'googlemaps'
所以你需要 import { LatLng, LatLngBounds } from 'googlemaps'
回答by Sam
You are checking the wrong declaration file. The one you are using is: https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/google-maps/index.d.tswhich does not expose LatLng.
您正在检查错误的声明文件。您正在使用的是：https: //github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/google-maps/index.d.ts，它不公开 LatLng。
The declaration file you linked to is: https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/googlemaps/index.d.ts
您链接到的声明文件是：https: //github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/googlemaps/index.d.ts
googlemapsvs google-maps
googlemaps对比 google-maps
