Do not mutate state directly use setState ()?

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Tags

1. #method
2. #shouldcomponentupdate
3. #setstate
4. #change
5. #because
6. #inside
7. #reference
8. #processed
9. #calling
10. #means
11. #state
12. #never
13. #check
14. #mutation
15. #mutate
16. #replace
17. #object
18. #afterwards
19. #overridden
20. #declare
21. #directly
22. #equality
23. #manual