noseJ's questions

Can you get the variable b?

let a = function() {
  const b = 20;
}

console.log(a().b);

Create a new component withionic g c list-user

import { Component, OnInit } from '@angular/core';

    @Component({
  selector: 'app-list-user',
  templateUrl: './list-user.component.html',
  styleUrls: ['./list-user.component.scss'],
})
export class ListUserComponent implements OnInit {

  constructor() { }

And this is the file app.module.ts

import { ListUser } from './list-user/list-user.component';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';

@NgModule({
  declarations: [AppComponent, ListUser],


  ngOnInit() {}

}

This is the error I get:

compiler.js:2430 Uncaught Error: Unexpected value 'undefined' declared by the module 'AppModule'
    at syntaxError (compiler.js:2430)
    at compiler.js:18685
    at Array.forEach (<anonymous>)
    at CompileMetadataResolver.push../node_modules/@angular/compiler/fesm5/compiler.js.CompileMetadataResolver.getNgModuleMetadata (compiler.js:18683)
    at