extracted getScrollTop logic to method, so we can add comment there
extracted getScrollTop logic to method, so we can add comment there

daukantas/factlink-core,daukantas/factlink-core,Factlink/factlink-core,Factlink/factlink-core,Factlink/factlink-core,daukantas/factlink-core,Factlink/factlink-core,daukantas/factlink-core