Hemant Gautam <gettingerr...@gmail.com> writes: Hi Hemant,
> This is the code > > (ns clojure_begins_19_08_2014.core) Use hyphens instead of underscores for namespace and var names. > (defn first-fn[x] > (print x)) > > (defn first-fn[x] > (print "Value of x with String " x)) > > (first-fn 10) > > See, above code consists of two function with same name and with same > number of arguments. When I call first-fn, the function declared > later gets called. I get output as: > > Value of x with String 10 > nil > > So can any one explain how this thing is happening The second definition overrides the first one. That's possible in Clojure because when developing you usually have a REPL connection and add and change functions in the live system as you go. > and also explain how we can have same function written 2 times in a > same namespace. You can't. Or more precise, you can't after the file has been loaded. Note that when your file above is loaded, in between of the two defns you could call (first-fn 10) which would only print "10" because in this short region, the first version is active. Possibly one could enhance the Clojure compiler or reader so that it emits a warning in case a function is defined twice in the same file and namespace. But since you can also have multiple files defining stuff in the same namespace, I guess intended overriding during a REPL session and unintended overriding like above may become hard to distinguish. Bye, Tassilo -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
