Does map mutate array?

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Tags

1. #invoked
2. #existing
3. #first
4. #visits
5. #range
6. #elements
7. #called
8. #invocation
9. #changed
10. #processed
11. #value
12. #passed
13. #mutate
14. #although
15. #their
16. #array
17. #before
18. #which
19. #callback