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指定一个类型应该来自哪个环境 `lib`

[英]Specify which ambient `lib` a type should come from

原文 2022-05-16 20:44:01 9 1 typescript

I'm using window.onmessage in TypeScript. VS Code seems to think that the parameter has the type MessageEvent from lib.dom.iterable.d.ts while it should have the type MessageEvent from lib.dom.d.ts .我在 TypeScript 中使用window.onmessage Code 似乎认为该参数具有来自lib.dom.iterable.d.ts的MessageEvent类型，而它应该具有来自lib.dom.d.ts的MessageEvent类型。 How can I point the compiler/language service to the correct type?如何将编译器/语言服务指向正确的类型？

1 个解决方案

MessageEvent is an interface, so TypeScript merges its different definitions. MessageEvent是一个接口，所以 TypeScript 合并了它的不同定义。 It just happens that VS Code is pointing you to lib.dom.iterable.d.ts , but in reality any value of type MessageEvent you come across should implement the contract defined in lib.dom.d.ts . VS Code 恰好将您指向lib.dom.iterable.d.ts ，但实际上您遇到的任何MessageEvent类型的值都应该实现lib.dom.d.ts中定义的契约。

尝试为lib的打字稿构建环境类型定义 - Trying to build ambient type definition for typescript for a lib

构造函数中服务参数的正确类型是什么以及它应从何而来 - What is the correct type of the service parameter in the constructor and from where it should come

lib是从哪里来的typecsript？ - Where does the lib come from in typecsript?

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如何重用来自泛型的类型？ - How to reuse type come from generic?

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搜索类型定义时何时使用环境？ - When to use ambient while searching for a type definition?

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