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Answers and rating deltas for

How can I call a possibly-non-existent method, without errors, in one line in JavaScript?

Author Votes Δ
Nikola Dimitroff 6 +4.26
gen_Eric 5 +0.51
Robin van Baalen 1 -0.92
karaxuna 0 -0.82
Last visited: Sep 14, 2014, 5:07:29 AM