I found an interesting function "identity" which will do nothing but only returns the parameter passed to it. The next minute I came up a question: "then what's the purpose of this function?" -- I've tried to figure out reasons of existence of "identity".
The only reason that I can imagine is this: because we often use higher-order functions, these higher-order functions will accept functions as its parameters, in such a situation, when we want to use a higher-order function but don't want to pass any "real" functions to it, then we can use function like "identity" and "identity" here is just to fill the role of parameter of higher-order function. Guys, is my guess correct or not? Are there other reasons for identity's existence?? Are there other functions for the same purpose? Thanks, Jaime -- 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
