Use Helium to discover unused css classes in Angular

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I’m trying to use the Helium to discover unused classes in my css.

I imported it into my index.html:

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/helium-css/1.1/helium.min.js" onload="helium.init()"></script>

However the textarea is not shown as indicated in the documentation and I have the following error in the console:

Uncaught Typeerror: Cannot read Property 'appendchild' of Undefined At Object.generateCSS (Helium.min.js:1)

Has anyone ever managed to use the Helium in Angular? I’m forgetting something?

Edit:

I managed to bring out the textarea using the async in the script import, but when I put the page link I want to check "http://localhost:4200/login" and click Start it just reload the page and add the textarea, showing on the console:

Cannot read Property 'Sort' of Undefined

css angular typescript

  • Which version of the angler you are using?

  • @Rafaelrotiroti version 6

  • Are you using any bundler? (webpack, Parcel)

  • How do I find this out? I found it in sources: (window["webpackJsonp"] = window["webpackJsonp"] || []).

  • Try to put this file js inside the archive angular-cli.json within the feasibility of scripts. And call the init inside the AppComponent.

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