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prelude: |
num = (1..).lazy.take(100)
ary2 = [[1,2]].cycle.lazy.take(10)
ary10 = [[*1..10]].cycle.lazy.take(10)
ary20 = [[*1..20]].cycle.lazy.take(10)
ary50 = [[*1..50]].cycle.lazy.take(10)
ary100 = [[*1..100]].cycle.lazy.take(10)
benchmark:
num3: num.flat_map {|x| x}.take(3).to_a
num10: num.flat_map {|x| x}.take(3).to_a
ary2: ary2.flat_map {|x| x}.take(3).to_a
ary10: ary10.flat_map {|x| x}.take(3).to_a
ary20: ary20.flat_map {|x| x}.take(3).to_a
ary50: ary50.flat_map {|x| x}.take(3).to_a
ary100: ary100.flat_map {|x| x}.take(3).to_a
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