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Suggest Did you mean 'typeof Foo' when using value Foo as a type #28975

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@mohsen1

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@mohsen1
type Foo<T> = {}

const Something = []

type FooSomething = Foo<Something>
//                      ^
//                      Can not find name "Something"               

Instead, suggest that Something is in the value space and user possibly meant typeof Something.

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Error messages, type space, generics

Checklist

My suggestion meets these guidelines:

  • This wouldn't be a breaking change in existing TypeScript/JavaScript code
  • This wouldn't change the runtime behavior of existing JavaScript code
  • This could be implemented without emitting different JS based on the types of the expressions
  • This isn't a runtime feature (e.g. library functionality, non-ECMAScript syntax with JavaScript output, etc.)
  • This feature would agree with the rest of TypeScript's Design Goals.

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    Domain: Error MessagesThe issue relates to error messagingExperience EnhancementNoncontroversial enhancementsFixedA PR has been merged for this issueGood First IssueWell scoped, documented and has the green lightHelp WantedYou can do thisSuggestionAn idea for TypeScript

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