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This is not a duplicate suggestion. I'm not saying that the whole document, [ASP.NET Core - TypeScript](https://www.typescriptlang.org/docs/handbook/asp-net-core.html) ([source as of Oct 2018](https://github.com/Microsoft/TypeScript-Handbook/blob/85d62b7c83f53be04462035c63ca043f2d42f419/pages/tutorials/ASP.NET%20Core.md)), should be rewritten, or that its content should...

The release notes for 3.4 have quite a heavy-weight example of higher order function inference where a considerably simpler example would probably help more people I understand it. The simplest...

I started to look at TypeScript for a few days core. I do develop applications in ASP.NET Core. I mostly use JavaScript to manipulate the DOM and using Ajax, nothing...

**TypeScript Version:** 3.3.0-dev.201xxxxx **Search Terms:** Interfaces, Type Aliases **Code** **Expected behavior:** The docs for Interfaces vs. Type aliases are outdated. They state that types don't create names for errors whereas...

On http://www.typescriptlang.org/docs/handbook/basic-types.html , It said > When accessing an element outside the set of known indices, a union type is used instead However, when I tested this example locally, both...

Hi all, I'm not sure if this is a small typo/mistake or if I'm not getting it right. On the [Namespaces and Modules](https://github.com/Microsoft/TypeScript-Handbook/blob/master/pages/Namespaces%20and%20Modules.md) page there seems to be 2 preferred...

Editing

The `Person` interface cannot be assigned to the `Dict` interface. According to https://github.com/Microsoft/TypeScript/issues/15300, this is intended behavior However, it is not intuitive behavior and should be documented. The Indexable Interfaces...

Update this file so that it is up-to-date with regard to new language features, especially around union types and ES6 features

Editing

remove outdated parts PR related: https://github.com/Microsoft/TypeScript/pull/17765

This information that I found in [this blog](https://www.sitepen.com/blog/update-the-definitive-typescript-guide/) is missing in the handbook: > It is extremely important to keep in mind that the concrete function implementation must have an...