Angular 2訂閱共享項目到多個變種

Question

我想分享數據到兩個變項，項目和標題，我該如何實現？

items = []; 
title = []; 

ngOnInit() { 
    this.dataService.fetchData(this.id) 
     .subscribe(
     (data) => this.items = data, 
     (error) => handleError(error), 
    ); 
} 

Answer 1

ngOnInit() { 
    this.dataService.fetchData(this.id) 
     .subscribe(
     (data) => { 
      this.items = data; 
      this.title = data; 
     }, 
     (error) => handleError(error), 
    ); 
} 

Answer 2

this.dataService.fetchData(this.id) 
    .subscribe(
    (data) => this.items = this.title = data, 
    (error) => handleError(error), 
);