Angular 2: Adding ngClass to the element based on the click event

Question

I want Clicked class to be applied only to one clicked element at a time. Upon clicking other element the first clicked element should not have that class any more. It should be somewhat like this.clicked to that particular element.

  .rangeContainer{
    width: 100%;
    height: 46px;
    }
    .range{
      height: 42px;
      background-color: #F6F6F6;
      color: #035688;
      font-size: 12px;
      font-weight: 800;
      line-height: 46px;
      padding: 15px 20px;
      cursor: pointer;
    }
    .clicked{
      background-color: white;
      color: #7A232E;
      border-top: 6px solid #7A232E;
    }
  
I want the 

   
<div class="rangeContainer">
    <span (click)="click = !click" [ngClass]="{'clicked' : click}" class="range">K4 - K5</span>
    <span (click)="click = !click" [ngClass]="{'clicked' : click}"class="range">1ST - 2ND</span>
    <span (click)="click = !click" [ngClass]="{'clicked' : click}"class="range">3RD - 4TH</span>
    <span (click)="click = !click" [ngClass]="{'clicked' : click}"class="range">5TH - 8TH</span>
</div>

Answer 1

<span
  *ngFor="let range of ['K4 - K5', '1ST - 2ND', '3RD - 4TH', '5TH - 8TH']; let i = index"
  (click)="activeIndex = i"
  [ngClass]="{ clicked : activeIndex === i }" class="range" >
  {{ range }}
</span>

Plunker Example