Use a pure JS library in Angular

Question

I'm trying to use jsdom in this Angular 5 project.

npm install jsdom --save

Now, I import the library:

import * as jsdom from "jsdom";

And then use the library in my code just like the npm readme suggests:

const inMemoryDom = new jsdom('<html>...</html>');

The app crashes and console reads Cannot find module "child_process". Any clue what this could mean?

no, I don't know how to do that. Any link you can suggest that demonstrates this process? — Jem
– Jem, Commented Feb 23, 2018 at 10:38

cyr_x · Accepted Answer · 2018-02-23 10:40:50Z

4

The jsdom library is meant to be used with nodejs, it's therefore not possible to use it inside a browser environment. Because modules like child_process are only available inside a nodejs environment.

In theory the only option to run it inside a browser environment would be to use something like browserify.

Inside the github repository of jsdom there's a section explaining what has to be done to use it inside a browser environment.

edited Feb 23, 2018 at 10:40

answered Feb 23, 2018 at 10:37

cyr_x

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4 Comments

Patrick Kelleter Over a year ago

What would be the point of using jsom in an browser environment in the first place? I don't really see the point to be honest.

Jem Over a year ago

@PatrickKelleter it's an app that load the HTML contents of legacy websites on a dead intranet, parses the contents and uploads bits to a database. It's not pretty but it's effective :-)

cyr_x Over a year ago

At want prevents you from doing this using nodejs ? A nodejs server could also request the contents and parse it.

Jem Over a year ago

@Cyrix, thanks that makes sense now. Will try browserify, or will stick to const parser = new DOMParser(); Indeed, nodejs could be an option in this case. I wanted to skip writing a backend as Angular seems a good fit for adding buttons etc. to help the engine make decisions when parsing.

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