Export types

[privatenumber]

No description provided.

[sindresorhus]

This is a breaking change for TS users, so I prefer to do it myself in the next major release. The types are already implicitly exported as it's named index.d.ts, which TS should check.

[privatenumber]

How is it a breaking change?

[sindresorhus]

sindresorhus/got#2267

[privatenumber]

That's a breaking changes because the types property was removed from package.json. In this case, it's not because index.d.ts is at the root of the package where it can be detected.

In Node10 resolution mode, tsc checks the types property, and then falls back to checking index.d.ts at the root of the package. Therefore, that issue can be fixed by adding the top-level types property back. Node10 will look at types & Node16 will look at exports.types.

Here's the resolution trace using moduleResolution: "node" (via tsc --traceResolution):

======== Resolving module 'copy-text-to-clipboard' from '/index.ts'. ========
Explicitly specified module resolution kind: 'Node10'.
Loading module 'copy-text-to-clipboard' from 'node_modules' folder, target file types: TypeScript, Declaration.
Found 'package.json' at '/node_modules/copy-text-to-clipboard/package.json'.
File '/node_modules/copy-text-to-clipboard.ts' does not exist.
File '/node_modules/copy-text-to-clipboard.tsx' does not exist.
File '/node_modules/copy-text-to-clipboard.d.ts' does not exist.
'package.json' does not have a 'typesVersions' field.
'package.json' does not have a 'typings' field.
'package.json' does not have a 'types' field.
'package.json' does not have a 'main' field.
File '/node_modules/copy-text-to-clipboard/index.ts' does not exist.
File '/node_modules/copy-text-to-clipboard/index.tsx' does not exist.
File '/node_modules/copy-text-to-clipboard/index.d.ts' exists - use it as a name resolution result.
Resolving real path for '/node_modules/copy-text-to-clipboard/index.d.ts', result '/node_modules/copy-text-to-clipboard/index.d.ts'.
======== Module name 'copy-text-to-clipboard' was successfully resolved to '/node_modules/copy-text-to-clipboard/index.d.ts' with Package ID 'copy-text-to-clipboard/[email protected]'. ========

Reproduction: https://stackblitz.com/edit/stackblitz-starters-hhbdf4?file=index.ts