How can I improve my Subscription unsubscribe?

Question

Angular

The component has several subscriptions from which I unsubscribe in destruction:

ngOnDestroy() {
   if (this.orderDefinitionRequestSubscription) {
      this.orderDefinitionRequestSubscription.unsubscribe();
    }

    if (this.createOrderSubscription) {
      this.createOrderSubscription.unsubscribe();
    }

    if (this.createBlockSubscription) {
      this.createBlockSubscription.unsubscribe();
    }

    if (this.orderVersionsSubscription) {
      this.orderVersionsSubscription.unsubscribe();
    }
}

How can this code be improved and avoid duplication?

Answer 1

https://medium.com/ngx/why-do-you-need-unsubscribe...