strange map
Hi (map #(do (print -) %) '(1 2 3 4 5)) I think the result should be (-1 -2 -3 -4 -5), but it is (--1 -2 -3 -4 5), it's difficult to understand, Can someone give answer? -- -- 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/groups/opt_out.
Re: strange map
Hi, Try just one thing: (def r (map #(do (print -) %) '(1 2 3 4 5))) And after, do (println r) What do you get? 2013/8/28 ljcppu...@gmail.com Hi (map #(do (print -) %) '(1 2 3 4 5)) I think the result should be (-1 -2 -3 -4 -5), but it is (--1 -2 -3 -4 5), it's difficult to understand, Can someone give answer? -- -- 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/groups/opt_out. -- -- 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/groups/opt_out.
Re: strange map
map is lazy. You shouldn't call side effect functions from it. I recommend you use doseq instead. On Wed, Aug 28, 2013 at 1:57 AM, Christian Sperandio christian.speran...@gmail.com wrote: Hi, Try just one thing: (def r (map #(do (print -) %) '(1 2 3 4 5))) And after, do (println r) What do you get? 2013/8/28 ljcppu...@gmail.com Hi (map #(do (print -) %) '(1 2 3 4 5)) I think the result should be (-1 -2 -3 -4 -5), but it is (--1 -2 -3 -4 5), it's difficult to understand, Can someone give answer? -- -- 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/groups/opt_out. -- -- 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/groups/opt_out. -- -- 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/groups/opt_out.
Re: strange map
Hi, Nothing to get, Nothing to println, please give a detail, thank you. On Wednesday, August 28, 2013 4:57:49 PM UTC+8, Christian Sperandio wrote: Hi, Try just one thing: (def r (map #(do (print -) %) '(1 2 3 4 5))) And after, do (println r) What do you get? 2013/8/28 ljcp...@gmail.com javascript: Hi (map #(do (print -) %) '(1 2 3 4 5)) I think the result should be (-1 -2 -3 -4 -5), but it is (--1 -2 -3 -4 5), it's difficult to understand, Can someone give answer? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com javascript: 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+u...@googlegroups.com javascript:. For more options, visit https://groups.google.com/groups/opt_out. -- -- 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/groups/opt_out.
Re: strange map
Right, thank you! On Wednesday, August 28, 2013 4:59:33 PM UTC+8, Alex Baranosky wrote: map is lazy. You shouldn't call side effect functions from it. I recommend you use doseq instead. On Wed, Aug 28, 2013 at 1:57 AM, Christian Sperandio christian...@gmail.com javascript: wrote: Hi, Try just one thing: (def r (map #(do (print -) %) '(1 2 3 4 5))) And after, do (println r) What do you get? 2013/8/28 ljcp...@gmail.com javascript: Hi (map #(do (print -) %) '(1 2 3 4 5)) I think the result should be (-1 -2 -3 -4 -5), but it is (--1 -2 -3 -4 5), it's difficult to understand, Can someone give answer? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com javascript: 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+u...@googlegroups.com javascript:. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com javascript: 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+u...@googlegroups.com javascript:. For more options, visit https://groups.google.com/groups/opt_out. -- -- 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/groups/opt_out.
Re: strange map
Hi user= (def r (map #(do (print -) %) '(1 2 3 4 5))) #'user/r user= (println r) (--1 -2 -3 -4 5) nil On Wednesday, August 28, 2013 4:57:49 PM UTC+8, Christian Sperandio wrote: Hi, Try just one thing: (def r (map #(do (print -) %) '(1 2 3 4 5))) And after, do (println r) What do you get? 2013/8/28 ljcp...@gmail.com javascript: Hi (map #(do (print -) %) '(1 2 3 4 5)) I think the result should be (-1 -2 -3 -4 -5), but it is (--1 -2 -3 -4 5), it's difficult to understand, Can someone give answer? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com javascript: 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+u...@googlegroups.com javascript:. For more options, visit https://groups.google.com/groups/opt_out. -- -- 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/groups/opt_out.
Re: strange map
Hi user= (def r (map #(do (print -) %) '(1 2 3 4 5))) #'user/r user= (println r) (--1 -2 -3 -4 5) nil On Wednesday, August 28, 2013 4:57:49 PM UTC+8, Christian Sperandio wrote: Hi, Try just one thing: (def r (map #(do (print -) %) '(1 2 3 4 5))) And after, do (println r) What do you get? 2013/8/28 ljcp...@gmail.com javascript: Hi (map #(do (print -) %) '(1 2 3 4 5)) I think the result should be (-1 -2 -3 -4 -5), but it is (--1 -2 -3 -4 5), it's difficult to understand, Can someone give answer? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com javascript: 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+u...@googlegroups.com javascript:. For more options, visit https://groups.google.com/groups/opt_out. -- -- 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/groups/opt_out.
Re: strange map
In fact, you mix the output in the REPL and the result of the map function. The result of the map call is (1 2 3 4 5), but you have the print display is managed by the repl and is done when is done :) If you want as result a string with the negative value, you must do: (map #(str - %) '(1 2 3 4 5)) 2013/8/28 ljcppu...@gmail.com Hi user= (def r (map #(do (print -) %) '(1 2 3 4 5))) #'user/r user= (println r) (--1 -2 -3 -4 5) nil On Wednesday, August 28, 2013 4:57:49 PM UTC+8, Christian Sperandio wrote: Hi, Try just one thing: (def r (map #(do (print -) %) '(1 2 3 4 5))) And after, do (println r) What do you get? 2013/8/28 ljcp...@gmail.com Hi (map #(do (print -) %) '(1 2 3 4 5)) I think the result should be (-1 -2 -3 -4 -5), but it is (--1 -2 -3 -4 5), it's difficult to understand, Can someone give answer? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@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+u...@**googlegroups.com For more options, visit this group at http://groups.google.com/**group/clojure?hl=enhttp://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+u...@**googlegroups.com. For more options, visit https://groups.google.com/**groups/opt_outhttps://groups.google.com/groups/opt_out . -- -- 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/groups/opt_out. -- -- 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/groups/opt_out.
Re: strange map
I'm pretty sure the OP is experimenting to see when items are realized, and wants to know why it's peeking ahead one item. Most likely map is seeing if the next part is empty. On Wed, Aug 28, 2013 at 5:39 AM, Christian Sperandio christian.speran...@gmail.com wrote: In fact, you mix the output in the REPL and the result of the map function. The result of the map call is (1 2 3 4 5), but you have the print display is managed by the repl and is done when is done :) If you want as result a string with the negative value, you must do: (map #(str - %) '(1 2 3 4 5)) 2013/8/28 ljcppu...@gmail.com Hi user= (def r (map #(do (print -) %) '(1 2 3 4 5))) #'user/r user= (println r) (--1 -2 -3 -4 5) nil On Wednesday, August 28, 2013 4:57:49 PM UTC+8, Christian Sperandio wrote: Hi, Try just one thing: (def r (map #(do (print -) %) '(1 2 3 4 5))) And after, do (println r) What do you get? 2013/8/28 ljcp...@gmail.com Hi (map #(do (print -) %) '(1 2 3 4 5)) I think the result should be (-1 -2 -3 -4 -5), but it is (--1 -2 -3 -4 5), it's difficult to understand, Can someone give answer? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@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+u...@**googlegroups.com For more options, visit this group at http://groups.google.com/**group/clojure?hl=enhttp://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+u...@**googlegroups.com. For more options, visit https://groups.google.com/**groups/opt_outhttps://groups.google.com/groups/opt_out . -- -- 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/groups/opt_out. -- -- 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/groups/opt_out. -- -- 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/groups/opt_out.
