Why do we use observable in angular?

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Tags

1. #observable
2. #registered
3. #observer
4. #observe
5. #differences
6. #method
7. #other
8. #promises
9. #acted
10. #which
11. #means
12. #similar
13. #angular
14. #action
15. #simply
16. #subscribe
17. #objects
18. #pattern
19. #using
20. #object