Is there any documentation for this TypeScript syntax?

Question

As per this other thead on the topic, next.js automatically generates a next-env.d.ts file, to ensure that the next.js types are picked up by the TypeScript compiler. The next-env.d.ts file looks like this:

/// <reference types="next" />
/// <reference types="next/types/global" />

Fine, but I couldn't find the TypeScript documentation for this - is there any, or is it an experimental feature? I'd like to manually create a similar file for another package that doesn't generate the types.

Paul Razvan Berg · Accepted Answer · 2020-05-20 14:08:48Z

1

I found it. It's called "Triple-Slash Directives":

Triple-slash directives are single-line comments containing a single XML tag. The contents of the comment are used as compiler directives.

Read more about this in the docs.

answered May 20, 2020 at 14:08

Paul Razvan Berg

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