TypeScript: Specify a directory to look for module type definitions

Question

Heyho,

I want to use some javascript libraries in my typescript code for which there are no typings in npm. So I wrote the typings myself and put them in a definitions directory in my source tree. However, I could not get typescript to look in that directory for those modules.

My directory structure looks like this:

+-node_modules
| |
| +-moduleA
| |
| +-moduleB
|
+-src
| |
| +-definitions
| | |
| | +-moduleA.d.ts
| | |
| | +-moduleB.d.ts
| |
| +-ts
|   |
|   + ... all typescript code ...
|
+-tsconfig.json

I tried including the modules in the definitions-directory using

• include
• files
• typeRoots
• paths

However none of it worked.

Can somebody tell me, how to get typescript to include those typings?

PS: Why is the TypeScript module handling so complicated???

Answer 1

{
  "compilerOptions": {
    "typeRoots": [
      "./node_modules/@types",
      "./some-custom-lib"
    ]
  }
}

the typeRoots string array is just for that. In addition to your regular "node_modules/@type", add a custom made typings folder.