Incorporate the Angular framework by using the import statement within the app.module.ts file

Following an upgrade from Angular 1 to Bootstrap with Angular 2 using the upgrade option, encountering an error after importing Angular with systemJS config:

map: {... 'angular': 'npm:angular/angular.js' ... }

The browser is throwing this error:

systemjs.import error: Error: (SystemJS) angular.module is not a function
    TypeError: angular.module is not a function
        at execute (http://msoqa05.devlab.ad:8088/home/bl/app.module.js:88:21)
        at ZoneDelegate.invoke (https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="354f5a5b501b5f4675051b021b01">[email protected]</a>?main=browser:242:26)
        at Zone.run (https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="e2988d8c87cc8891a2d2ccd5ccd6">[email protected]</a>?main=browser:113:43)
        at https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="d5afbabbb0fbbfa695e5fbe2fbe1">[email protected]</a>?main=browser:520:57
        at ZoneDelegate.invokeTask (https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="9ee4f1f0fbb0f4eddeaeb0a9b0aa">[email protected]</a>?main=browser:275:35)
        at Zone.runTask (https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="403a2f2e256e2a3300706e776e74">[email protected]</a>?main=browser:151:47)
        at drainMicroTaskQueue (https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="1c6673727932766f5c2c322b3228">[email protected]</a>?main=browser:418:35)
        at XMLHttpRequest.ZoneTask.invoke (https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="7a0015141f5410093a4a544d544e">[email protected]</a>?main=browser:349:25)
    Error loading http://msoqa05.devlab.ad:8088/home/bl/app.module.js

Confusion arises about needing to map Angular inside systemjs.config in order to import it. Is this necessary?

Attempting to downgrade an Angular 2 component within app.module.ts:

import * as angular from 'angular'; 
import { downgradeComponent } from '@angular/upgrade/static';

angular.module('myApp')
    .directive(
        'helloWorld',
        downgradeComponent({component: HelloWorldComponent}) as angular.IDirectiveFactory
    );

TypeScript compilation appears successful, but the browser throws an error. Is angular.module fundamental to AngularJS?

angulartypescriptsystemjs

Answer №1

By following this approach, the issue was successfully resolved without the necessity of importing angular with systemjs.

import * as _angular_ from 'angular';

declare global {
  const angular: typeof _angular_;
}

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