ion-range always show label code example

Example: ionic range

<ion-list>
  <ion-item>
    <ion-range color="danger" pin="true"></ion-range>
  </ion-item>

  <ion-item>
    <ion-range min="-200" max="200" color="secondary">
      <ion-label slot="start">-200</ion-label>
      <ion-label slot="end">200</ion-label>
    </ion-range>
  </ion-item>

  <ion-item>
    <ion-range min="20" max="80" step="2">
      <ion-icon size="small" slot="start" name="sunny"></ion-icon>
      <ion-icon slot="end" name="sunny"></ion-icon>
    </ion-range>
  </ion-item>

  <ion-item>
    <ion-range min="1000" max="2000" step="100" snaps="true" color="secondary"></ion-range>
  </ion-item>

  <ion-item>
    <ion-range min="1000" max="2000" step="100" snaps="true" ticks="false" color="secondary"></ion-range>
  </ion-item>

  <ion-item>
    <ion-range dualKnobs="true" min="21" max="72" step="3" snaps="true"></ion-range>
  </ion-item>
</ion-list>