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- (defn parting
- "returns a String parting in a given language"
- ([] (parting "World"))
- ([name] (parting name "en"))
- ([name language]
- ; condp is similar to a case statement in other languages.
- ; It is described in more detail later.
- ; It is used here to take different actions based on whether the
- ; parameter "language" is set to "en", "es" or something else.
- (condp = language
- "en" (str "Goodbye, " name)
- "es" (str "Adios, " name)
- (throw (IllegalArgumentException.
- (str "unsupported language " language))))))
- (println (parting)) ; -> Goodbye, World
- (println (parting "Mark")) ; -> Goodbye, Mark
- (println (parting "Mark" "es")) ; -> Adios, Mark
- (println (parting "Mark", "xy")) ; -> java.lang.IllegalArgumentException: unsupported language xy
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