Are there any plans to add -$> to core or contrib? 2009/11/13 Laurent PETIT <[email protected]>: > Oh yes, thanks for refreshing my memory. > And indeed it makes sense to place the question mark in the "questioned" side > :) > > 2009/11/13 Wilson MacGyver <[email protected]>: >> Yes, it's groovy, and it's "?." It's called safe navigation operator >> >> http://groovy.codehaus.org/Operators#Operators-SafeNavigationOperator%28%3F.%29 >> >> On Thu, Nov 12, 2009 at 6:03 PM, Laurent PETIT <[email protected]> >> wrote: >>> 2009/11/3 Alex Osborne <[email protected]>: >>>> >>>> Sean Devlin wrote: >>>>> This is slightly unrealted, but how does one pronounce ->, ->> and the >>>>> like? Is this documented? >>>> >>>> The doc-strings usually give you a nice hint. I usually use "thread" >>>> for -> and "thread last" for ->>. The actual symbols I think of as >>>> "arrow" and "double arrow". >>>> >>>> Then -?> in contrib is "short-circuiting thread". Not sure about the >>>> symbol, perhaps "questionable arrow"? ;-) >>> >>> The question mark ? is there to "mimic" (somewhat) what one can find >>> in OO languages such as groovy (I think it's groovy, is it ?) : >>> >>> someObject.?propA.?prop2 >>> >>> where .? will check if the object is null before trying to get a >>> property (or method) on it. If null : returns null, if not null, >>> returns the property etc. >>> >>> Initially i wanted to name it ->? but the final ? is by convention >>> reserved for predicates, so Rich suggested -?> (and also .?. for the >>> .. equivalent). >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Clojure" group. >>> To post to this group, send email to [email protected] >>> Note that posts from new members are moderated - please be patient with >>> your first post. >>> To unsubscribe from this group, send email to >>> [email protected] >>> For more options, visit this group at >>> http://groups.google.com/group/clojure?hl=en >> >> >> >> -- >> Omnem crede diem tibi diluxisse supremum. >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to [email protected] >> Note that posts from new members are moderated - please be patient with your >> first post. >> To unsubscribe from this group, send email to >> [email protected] >> 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 post to this group, send email to [email protected] > Note that posts from new members are moderated - please be patient with your > first post. > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en
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