Same as clojure.core/.. but returns nil as soon as the threaded value is nil itself (thus short-circuiting any pending computation).
Examples :
(.?. "foo" .toUpperCase (.substring 1)) returns "OO"
(.?. nil .toUpperCase (.substring 1)) returns nil
Source
clojure/contrib/core.clj:38
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(defnilsafe "Same as clojure.core/.. but returns nil as soon as the threaded value is nil itself (thus short-circuiting any pending computation). Examples : (.?. \"foo\" .toUpperCase (.substring 1)) returns \"OO\" (.?. nil .toUpperCase (.substring 1)) returns nil " .. .?.)
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