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Answers and rating deltas for

What does this JavaScript expression mean: return 0==a?!1:void 0==a.x?

Author Votes Δ
Narendran Solai Sridharan 1 +4.60
Amadan 0 -0.43
Kajal 0 -1.18
Last visited: Aug 26, 2016, 2:34:25 PM