“Cannot call a class as a function” react native in non component class

Question

Crawler.js:

export class WebCrawler {
    cookie_stores = [CookieStore(sisgrad_domain)];
...

App.js:

import { WebCrawler } from './crawler.js';

var MyCrawler = new WebCrawler();

export default class App extends Component<Props> {

  render() {
    return (
...

But I'm getting “Cannot call a class as a function”. I've found multiple answers about this error. Some of them tell to use new before the class name, which is what I'm doing, and the others say I must extend Component . But my Crawler class does nothing on the UI, why should I extend Component ?

Answer 1

我想CookieStore也是一个类，所以您需要

  new CookieStore