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Answers and rating deltas for

How to understand this fragment of code in javascript react

Author Votes Δ
ggorlen 5 +1.40
Medet Tleukabiluly 1 +0.73
kicken 1 +0.98
Scott Sauyet 0 -1.00
slebetman 0 -1.25
Last visited: Dec 22, 2019, 3:27:20 AM