The presentation document used at the in-company lightning talk event. It's about filter and reduce functions as an introduction to the functional programming.

1. Introduction to
Functional
Programming

2. Part 2
filter
reduce

4. Part 1
map

5. [ ]
[ ]
※ OK

6. Employee struct

7. [Employee]
[String]

8. map

9. filter

10. [ ]
[ ]

12. 200

13. yes, sir…

14. Employee struct
NEW—————>

15. [Employee]
[Employee]
200

16. for-in

17. for-in

18. filter
👏

19. filter
+
map

20. 200

21. [Employee]
[Employee]
200
[String]

22. filter + map
👏

23. reduce

24. [ ]

27. [Employee]
Double

28. for-in

29. reduce
👏

30. filter
+
map
+
reduce

31. 30

32. yes, sir…

33. Employee struct
NEW—————>

34. filter + map + reduce
👏

35. 🎉 Enjoy 🎉
Functional Programming