JavaScript — Objects

1 Filter even numbers Easy 2 Remove duplicates Medium 3 Flatten nested array (one level) Medium 4 Sum 1..5 #1 Hard 5 Filter evens #2 Medium 6 Map squares #3 Easy 7 Max in set #4 Medium 8 Reduce product #5 Hard 9 Sum 1..10 #6 Medium 10 Filter evens #7 Easy 11 Map squares #8 Medium 12 Max in set #9 Hard 13 Reduce product #10 Medium 14 Sum 1..15 #11 Easy 15 Filter evens #12 Medium 16 Map squares #13 Hard 17 Max in set #14 Medium 18 Reduce product #15 Easy 19 Sum 1..5 #16 Medium 20 Filter evens #17 Hard 21 Map squares #18 Medium 22 Max in set #19 Easy 23 Reduce product #20 Medium 24 Sum 1..10 #21 Hard 25 Filter evens #22 Medium 26 Map squares #23 Easy 27 Max in set #24 Medium 28 Reduce product #25 Hard 29 Sum 1..15 #26 Medium 30 Filter evens #27 Easy 31 Map squares #28 Medium 32 Max in set #29 Hard 33 Reduce product #30 Medium