<p>Simple button click event!!</p>

<button type="button" id="btn_click" (click)="click()">Click Me</button>
<p>{{ result }}</p>

<div>
  <input type="text" [(ngModel)]="value" />
  <button type="button" (click)="inc()">Add</button>
</div>

<div style="margin-top: 15px">
  <button type="button" (click)="minus()" [disabled]="flag">-</button>
  <input type="number" [(ngModel)]="quantity" />
  <button type="button" (click)="plus()">+</button>
</div>
