Compatibility with "module": "nodenext" in tsconfig.json

[whoisYeshua]

Hi. I'm using @nanostores/query in a TypeScript project with the "module": "nodenext" in tsconfig.json configuration.

However, I encountered an issue where some imports inside @nanostores/query are not working correctly with "module": "nodenext". Specifically, imports in "type files" (.d.ts) like import('./factory') are missing explicit extensions (.d.ts). This translates into the fact that all types from createFetcherStore become any.

Alternatively, if I switch to "module": "esnext" with "moduleResolution": "bundler", the imports work without needing explicit extensions, but then i lose "nodenext" mode.

Steps to Reproduce

1. Set up a TypeScript project with the following tsconfig.json:

{
	"compilerOptions": {
		/* Language and Environment */
		"target": "ESNext",

		/* Modules */
		"module": "nodenext",
		"resolveJsonModule": true,

		/* Emit */
		"noEmit": true,

		/* Interop Constraints */
		"isolatedModules": true,
		"allowSyntheticDefaultImports": true,
		"esModuleInterop": false,
		"forceConsistentCasingInFileNames": true,

		/* Type Checking */
		"strict": true,
		"noUnusedLocals": true,
		"noUnusedParameters": true,
		"noFallthroughCasesInSwitch": true,
		"verbatimModuleSyntax": true,

		/* Completeness */
		"skipLibCheck": true
	}
}

2. Install nanostores & @nanostores/query and try to use it in the project.

3. Try to create nanoquery store

or check this stackblitz example

Expected Behavior

The imports should work correctly with "module": "nodenext".

Suggested Fix

To ensure compatibility with "module": "nodenext", it would be helpful to add explicit extensions to the imports in @nanostores/query, such as:

import('./factory.d.ts');

Environment

• TypeScript version: [5.5.2 & 5.6.2]
• Node.js version: [18.20.3 & 22.7.0]
• @nanostores/query version: [0.3.4]