learning-cc4e

Solution to https://cc4e.com/. If you copy these you're not right in the head.
git clone https://kaka.farm/~git/learning-cc4e
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output.txt (93B)

      1 Map test
      2 Object Map count=4
      3   z=1
      4   y=2
      5   b=3
      6   a=4
      7 size=4
      8 z=1
      9 x=42
     10 
     11 Iterate
     12 z=1
     13 y=2
     14 b=3
     15 a=4