heros | IFDS/IDE Solver for Soot and other frameworks

I have the below simple rest api set up in Django. Calling the url http://127.0.0.1:8000/listheros/ returns

TypeError: Object of type Hero is not JSON serializable

for a reason I can't seem to figure out.

hope you all doing well, i am very new in react and i was following the guide, but got stuck with this strange problem while I import { Button} from './Button'. Ill provide the full code :

I was looking at the declarative RxJS approach to tour of heroes by Deborah Kurata. I would like to know how it would work in the following case:

1. By default, load all heroes
2. If there's a search term, show the search results

Now, this would be probably possible by doing something like this:

hero-search.component.ts:

Well I'm following the documentation of primeNg and I can't get the autocomplete to show the suggestions

1. Added Module import { AutoCompleteModule } from 'primeng/autocomplete';
2. Imported Module imports: [CommonModule, FormsModule, AutoCompleteModule],
3. I will show my code

so I'm in a new internship position and I was told to modernize a JEE applciation. I've migrated the code in my machine in both .rar , .tar.gz and raw source code , and I sotill get the same problem. so here is the full stack trace of the problem :

In this code I am showing days static in this format "S M T W T F S", But I want to make this dynamic. this is my code

I have a react js app with react-router-dom v6 to handle the routes. The routes functionality worked just fine before i added firebase firestore, but now for some reason when i'm in the seeker page and i reload it, the home page gets rendered. It's not a problem with user authentication because that's handled by the login component, but i couldn't find the problem in my configuration.

This is my app component.

When I try to put a banner video in public folder, the code does not play it. When the video is moved to the src/component then it plays. The 'bannerVid2' is kept in the Public folder, and it shows the error.

the error is:

Module not found: Error: You attempted to import ../../../public/videos/video-2.mp4 which falls outside of the project src/ directory. Relative imports outside of src/ are not supported. You can either move it inside src/, or add a symlink to it from project's node_modules/.

I've tried the old method like

but this does not works as well

my code is:

Could you tell me the advantage in using an Observable for heroes$ in Angular's livesearch tutorial? (https://angular.io/tutorial/toh-pt6)

Or in other words, is there something "wrong" with using a regular object instead of an observable at all in this particular example?

Original example 1 - with Observable: