Sayth, check out these examples and see if they clarify anything for you. user=> nil nil
user=> (if nil "nil is truthy" "nil is falsey") "nil is falsey" user=> (nil? nil) true user=> (if (nil? nil) "(nil? nil)=true is truthy" "(nil? nil)=true is falsey") "(nil? nil)=true is truthy" user=> (number? nil) false user=> (if (number? nil) "(number? nil)=false is truthy" "(number? nil)=false is falsey") "(number? nil)=false is falsey" Andy On Mon, Jan 30, 2017 at 12:09 AM, Sayth Renshaw <flebber.c...@gmail.com> wrote: > > > On Monday, 30 January 2017 19:02:08 UTC+11, Sayth Renshaw wrote: >> >> >> >> On Monday, 30 January 2017 18:53:44 UTC+11, Alan Forrester wrote: >>> >>> >>> > Hi >>> > >>> > If nil is true >>> > >>> > clojure-noob.core> (nil? nil) >>> > true >>> > >>> > Then why doesn't nil return from this statement as the first true >>> value? >>> >>> This expression is a function invocation. The function is the first item >>> in the list and the argument is the second. So this expression asks if nil >>> is nil, which is true. >>> >>> I cut the rest of your examples since they make similar mistakes. You >>> don’t understand clojure very well, you may want to read the docs: >>> >>> https://clojure.org/reference/reader >>> <https://www.google.com/url?q=https%3A%2F%2Fclojure.org%2Freference%2Freader&sa=D&sntz=1&usg=AFQjCNFZbto4LI2e6dV6ebx1OiG-iOCg-A> >>> >>> This isn’t an attack, just a statement of fact. >>> >>> Alan >> >> >> lol Alan I was, reading clojure for the brave and new reading the or >> syntax I didn't understand >> >> though I read https://clojuredocs.org/clojure.core/or >> >> reading your link now. >> >> Sayth >> > > > My confusion is that nil is false and will return true if nil false on all > other truthy values. It's a double negative same as > > clojure-noob.core> (false? false) > true > > This is the better link https://clojuredocs.org/clojure.core/nil_q > > user=> (nil? nil)trueuser=> (nil? 0)falseuser=> (nil? false)falseuser=> (nil? > '()) > > false > > > > -- > 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. > -- 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.
