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Answers and rating deltas for

Why can't I call .join() on the result of .keys()?

Author Votes Δ
Yang Yu 5 +4.59
Maheer Ali 2 +0.30
Syed mohamed aladeen 0 -0.57
HalfWebDev 0 -2.42
Last visited: Sep 4, 2019, 3:46:46 PM