我应该如何在 TypeScript 2 中使用 @types

问题描述

到目前为止，我们习惯于 tsd 或(更好的版本)打字

So far we are used to tsd or (The better version of it) typings

但是现在 TypeScript 2 提供了新的 @types 功能，我应该如何将我当前的项目转换为使用 @types?

But now that TypeScript 2 offers the new @types feature, how should I convert my current project to work with @types?

我有 tsd.json(在某些情况下为typings.json)以及所有依赖项，迁移到 TypeScript 2 的步骤是什么?

I have tsd.json (typings.json is some cases) with all the dependencies, what are the steps to do the move to TypeScript 2?

什么是新最佳实践?@types 是否支持特定版本?

What are the new best practices?Does @types support specific versions?

推荐答案

很简单.只需通过 npm 安装您需要的定义.

It's very simple. Just install the definitions that you need via npm.

例如，如果您需要 lodash，您可以这样做:

For example if you need lodash you can do:

npm install --save @types/lodash

安装后，您可以立即在您的项目中使用它.默认情况下，Typescript 将从 node_modules/@types 文件夹中解析已安装的 @types 包的类型.不再需要 tsd.json 或 typings.json 文件.

Once it's installed you can use it right away in your project. Typescript will resolve the typings for the installed @types package from the node_modules/@types folder by default. There's no need for a tsd.json or typings.json file anymore.

附加点:

• npm 中@types 包的主要和次要版本应与包版本相对应.
• 您可以在此处搜索类型:http://microsoft.github.io/TypeSearch/
• 阅读typeRoots 和 types 在这里.具体要注意这两点:
  • 如果在 tsconfig.json 中指定了 typeRoots，则只有指定的文件夹将用于类型根.这将排除 ./npm_modules/@types/ 除非你指定它.
  • 如果在 tsconfig.json 中指定了 types，那么只会包含指定的包.
  • The major and minor version of the @types package in npm should correspond with the package version.
  • You can search for types here: http://microsoft.github.io/TypeSearch/
  • Read about typeRoots and types here. Specifically pay attention to these two points:
    • If typeRoots is specified in tsconfig.json, then only specified folders will be used for the type roots. That will exclude ./npm_modules/@types/ unless you specify it.
    • If types is specified in tsconfig.json, then only the packages specified will be included.

    在博客文章中阅读更多内容 这里.

    Read more in the blog post here.

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