Incorporating npm packages with Typescript

I'm facing a challenge in my Typescript project where I want to incorporate an npm module that doesn't have typings or tsd files. When I attempt to use import Module from 'module', I encounter the error: Cannot find module 'module'. Is there a solution to this issue?

[EDIT] Here's a snippet of my tsconfig.json:

{
  "compilerOptions": {
    "target": "ES5",
    "moduleResolution": "node",
    "module": "commonjs",
    "noEmitOnError": true,
    "noImplicitAny": true,
    "experimentalDecorators": true,
    "sourceMap": true,
    "sourceRoot": "src",
    "outDir": "bld"
  },
  "exclude": [
    "bld"
  ]
}
typescriptnpm

Answer №1

It seems like your query pertains to importing a module,

import Module from 'module'

Instead of exporting it as mentioned. In such case, you can use regular JavaScript and require the module in this manner:

var Module = require('module');

[UPDATE]

Ensure that in tsconfig.json you include the following lines under compiler options:

"compilerOptions": { 
    "moduleResolution": "node",
    "module": "commonjs"
}

I hope this information proves useful.

Answer №2

If you prefer to keep your imports clean and free of requires, there is a simple method you can follow.

Create a separate file named module.d.ts with the following content:

declare module Module {}

After creating this file, your imports should function properly without cluttering your code.

For example, if you want to import something like

import { abc } from 'module';

You just need to update the module.d.ts file as follows:

declare module Module {
    export let abc: any
}

Answer №3

In this scenario, you can see how to use the numwords package:

Start by installing the package with npm install numwords

Next, import the .ts file into your code using: import * as numwords from 'num-words';

Lastly, you can utilize the package by calling console.log(numwords(5));

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