Cannot import a nested export in javascript module

Question

I cannot for the life of me figure out how to import readFileSync and writeFileSync from the rw module, specifically from its dash "submodule". I have tried the following

import {readFileSync, writeFileSync} from 'rw/dash';

which gives me error: Could not resolve "rw/dash". I can access the functions I need with import {dash} from 'rw'; and dash.readFileSync, but I'd rather import the functions directly. I also tried other things like

import {
  dash.readFileSync as readFileSync,
  dash.writeFileSync as writeFileSync
} from 'rw';

but dots don't seem to be allowed like this.

Any pointers are much appreciated. Or if this is against the "spirit" of javascript let me know.

Stephen Collins · Accepted Answer · 2021-07-05 10:24:27Z

1

If you don't mind adding a second line, you can do this:

import {dash} from 'rw';
const {readFileSync, writeFileSync} = dash;

The reason you can't import it with from 'rw/dash' is due to how that library does it's exports.

answered Jul 5, 2021 at 10:24

Stephen Collins

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2 Comments

Ruben Over a year ago

Thank you for your answer. What is it about the library that makes this not work? Is their implementation unorthodox somehow?

Stephen Collins Over a year ago

Not really, just very specific. index.js at the root of the project is the key. It explicitly exports each file, and in the case of lib/rw/dash.js, it also exports specific things. It was just a choice by the maintainer(s).

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