.extend() not working with ES6's import statement

Sorry if this has already been asked, but I couldn’t find the answer anywhere.

Basically, doing this works:

import nlp from 'compromise'

This too:

const nlp = require('compromise')
nlp.extend(require('compromise-ngrams'))

But this:

import nlp from 'compromise
nlp.extend(require('compromise-ngrams'))

Makes TSLint throw this error:

Property ‘ngrams’ does not exist on type ‘DefaultDocument’.

What’s the proper way of extending Compromise in an ES6 way?

Note: This is my tsconfig:

"compilerOptions": {
  "module": "commonjs",
  "target": "es6",
  "outDir": "out",
  "sourceMap": true,
  "rootDir": "src",
  "strict": true,
  "esModuleInterop": true // this makes my first example work
},

[Drache93]

Thanks, for the feedback - will make a PR with updated Readme. So far the readme doesn’t include typescript specific stuff.

[alexcheninfo]

That did it. Thanks! Your suggestion worked even without the compromise-numbers package.

Seems like if you want to use import, you have to do const nlpEx = nlp.extend(extension_name).

I’m glad you’re replying to these questions. The information you provide isn’t on the net, I think.

(And thanks, I didn’t know you could drop images here!)