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/route
import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { LoginComponent } from './login/login.component';
import { SignupComponent } from './signup/signup.component';


const routes: Routes = [
  {
    path: 'login',
    component: LoginComponent,
  },
  {
    path: 'signup',
    component: SignupComponent,
  },
  {
    path: '',
    redirectTo: '/home',
    pathMatch: 'full'
  }
 ];


@NgModule({
  imports: [RouterModule.forRoot(routes)],
  exports: [RouterModule]
})
export class AppRoutingModule { }
/app.module
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';

import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { LoginComponent } from './login/login.component';
import { SignupComponent } from './signup/signup.component';
import { HomeComponent } from './home/home.component';
import { Login2Component } from './login2/login2.component';
import { TestComponent } from './test/test.component';

@NgModule({
  declarations: [
    AppComponent,
    LoginComponent,
    SignupComponent,
    HomeComponent,
    Login2Component,
    TestComponent
  ],
  imports: [
    BrowserModule,
    AppRoutingModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }
/app.html
<html>
<app-login></app-login>
</html>