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Angular router scroll, get position

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.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

0

In my main appComponent I have the following code:

ngOnInit(): void 
 this.router.events.pipe(
 filter(event => event instanceof Scroll)
 ).subscribe((res) => 
 const sEv = res as Scroll;
 console.log(sEv.position);
 this.scrollPosition = sEv.position ? sEv.position : [0, 0];
 );
 

But everytime console log shows position as null. Why is this? Is it something wrong in my code?

angular angular-router

share|improve this question

asked Mar 26 at 12:37

gonggong

68322 gold badges1313 silver badges3333 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  you want only get current scroll position?
  
  – Boris Adamyan
  Mar 26 at 13:20
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ngOnInit() window.addEventListener('scroll', this.scrollEvent, true); ngOnDestroy() window.removeEventListener('scroll', this.scrollEvent, true); scrollEvent = (event: any): void => const number = event.srcElement.scrollingElement.scrollTop; console.log(number);
  
  – Boris Adamyan
  Mar 26 at 13:22
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  event.srcElement.scrollingElement doesn't exist and document.scrollingElement .scrollTop return always 0
  
  – gong
  Mar 26 at 13:55
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  try ----event.srcElement.scrollTop----
  
  – Boris Adamyan
  Mar 26 at 13:58
  

  
  
  
  

add a comment | 

0

In my main appComponent I have the following code:

ngOnInit(): void 
 this.router.events.pipe(
 filter(event => event instanceof Scroll)
 ).subscribe((res) => 
 const sEv = res as Scroll;
 console.log(sEv.position);
 this.scrollPosition = sEv.position ? sEv.position : [0, 0];
 );
 

But everytime console log shows position as null. Why is this? Is it something wrong in my code?

angular angular-router

share|improve this question

asked Mar 26 at 12:37

gonggong

68322 gold badges1313 silver badges3333 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  you want only get current scroll position?
  
  – Boris Adamyan
  Mar 26 at 13:20
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ngOnInit() window.addEventListener('scroll', this.scrollEvent, true); ngOnDestroy() window.removeEventListener('scroll', this.scrollEvent, true); scrollEvent = (event: any): void => const number = event.srcElement.scrollingElement.scrollTop; console.log(number);
  
  – Boris Adamyan
  Mar 26 at 13:22
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  event.srcElement.scrollingElement doesn't exist and document.scrollingElement .scrollTop return always 0
  
  – gong
  Mar 26 at 13:55
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  try ----event.srcElement.scrollTop----
  
  – Boris Adamyan
  Mar 26 at 13:58
  

  
  
  
  

add a comment | 

In my main appComponent I have the following code:

ngOnInit(): void 
 this.router.events.pipe(
 filter(event => event instanceof Scroll)
 ).subscribe((res) => 
 const sEv = res as Scroll;
 console.log(sEv.position);
 this.scrollPosition = sEv.position ? sEv.position : [0, 0];
 );
 

But everytime console log shows position as null. Why is this? Is it something wrong in my code?

angular angular-router

share|improve this question

asked Mar 26 at 12:37

gonggong

68322 gold badges1313 silver badges3333 bronze badges

ngOnInit(): void 
 this.router.events.pipe(
 filter(event => event instanceof Scroll)
 ).subscribe((res) => 
 const sEv = res as Scroll;
 console.log(sEv.position);
 this.scrollPosition = sEv.position ? sEv.position : [0, 0];
 );
 

angular angular-router

angular angular-router

share|improve this question

asked Mar 26 at 12:37

gonggong

68322 gold badges1313 silver badges3333 bronze badges

share|improve this question

asked Mar 26 at 12:37

gonggong

68322 gold badges1313 silver badges3333 bronze badges

asked Mar 26 at 12:37

gonggong

68322 gold badges1313 silver badges3333 bronze badges

asked Mar 26 at 12:37

gonggong

68322 gold badges1313 silver badges3333 bronze badges