How do I decide whether @types/* goes into `dependencies` or `devDependencies`?

by

Let’s say you’re developing a package “A” that have @types/some-module package in devDependencies. For some reason you’re exporting the type from @types/some-module:

import { SomeType } from 'some-module';

export default class APackageClass {
  constructor(private config: SomeType) {
    // …       
  }
}

Right now TypeScript consumers of package “A” are unable to guess what SomeType is, since devDependencies of package “A” are not installed.

In that particular case you need to place @types/* package with regular dependencies. For other cases devDependencies are good enough.

More Related Contents:

  1. TypeScript 2: custom typings for untyped npm module
  2. NPM package cannot be used as a JSX Component – Type errors
  3. typings vs @types NPM scope
  4. Import class in definition file (*d.ts)
  5. Types for function that applys name of function and arguments
  6. Is there a way to define type for array with unique items in typescript?
  7. Keyof inferring string | number when key is only a string
  8. How to configure custom global interfaces (.d.ts files) for TypeScript?
  9. Exclude/overwrite npm-provided typings
  10. Typescript 2.0. “types” field in tsconfig.json
  11. TypeScript typings in npm @types org packages
  12. Typescript does not copy d.ts files to build
  13. Extend (Update) third-party old type declaration interface with new one
  14. Mapping tuple-typed value to different tuple-typed value without casts
  15. ts-node ignores d.ts files while tsc successfully compiles the project
  16. ‘tsc command not found’ in compiling typescript
  17. How should I use @types with TypeScript 2
  18. Global types in typescript
  19. how to remove properties via mapped type in TypeScript
  20. Typescript Unions based on property inside nested object
  21. How to update TypeScript to latest version with npm?
  22. Extending global types (e.g. “Window”) inside a typescript module
  23. Types from both keys and values of object in Typescript
  24. Narrowing a return type from a generic, discriminated union in TypeScript
  25. get and set in TypeScript
  26. How do I import other TypeScript files?
  27. What does the “as” keyword do?
  28. Typescript ReturnType of generic function
  29. typescript difference between placement of generics arguments
  30. How to define an interface for objects with dynamic keys?

Leave a Comment