login.component.html

<p>
  login works!
</p>
<div>
    <!-- <input name="username" type="text" value="{{username}}">
    <br>
    <input name="password" type="password" value="{{password}}">
    <br> -->
    <input name="username" type="text" [(ngModel)]="username">
    <br>
    <input name="password" type="password" [(ngModel)]="password">
    <br>
    <button (click)=handleLogin()>Login</button>
</div>

<div *ngIf="invalidLogin">Error : Bad Login</div>