2014-07-08 23:11 GMT+02:00 Bob Hutchison <hutch-li...@recursive.ca>: > > On Jul 8, 2014, at 9:40 AM, Cecil Westerhof <cldwester...@gmail.com> > wrote: > > > In Clojure you can define a local constant with let, but I need a > variable (I think). > > > > I want to do the following. I have a function that checks several > things. Every time an error is found I want to set the variable errors to: > > (concat errors new-error) > > > > Is this possible? Or is there a better way to do this? > > Here's a different take on your question, and a few comments about how I'd > write that code. I don't think you need the atom -- kinda ugly and the > reduce/map/filter family of sequence functions will take you a long way. > > ; This is not a predicate, so don't use the -p suffix (and in Clojure it's > a ? normally) >
As I understood it (I am rewriting land of lisp to Clojure) that when a function returns a true/false state, that you then use the -p suffix. When returning () there are no errors. But I should use the ? then? > ; There's no reason not to pass those two objects into this function, so I > do. > Good idea. Makes it easy to test the function also. […] > I hope you can make sense of that :-) > Not immediately. I need to digest it. By the way. The current function is only the start of the checks. After the if I need to do several other checks also. So I think I do need the atom. But maybe I am mistaken. ;-) -- Cecil Westerhof -- 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.
