How to import module from node_modules?

Question

Inside node_modules there is directory:

data/lib/

With files:

index.js
index.ts
Data.js
Data.ts

How to use this module using import?

I have tried:

import import * as d from  'data/lib';

I says that:

`index.d.ts' is not a module

File `index.d.ts' is empty

Answer 1

You need an index.d.ts beside the index.js . You need to generate a build from your .ts files to be able to import it in other projects. There is a property on tsconfig.json called declaration that you can set to true, and then when you call tsc to generate your build, it will create the .d.ts files automatically for you. Take a look .