The words "seq" and "sequence" can be used interchangeably.
The "map" and "filter" functions return seqs. Yes, a seq may be lazy, but vectors and lists cannot. "seqable" means any data structure that can be turned into a seq using the "seq" function. This includes the Clojure collections, but also strings, arrays and Java collections. The Sequential interface is a way of indicating a collection has a natural order. So seqs, lists and vectors are sequential, but maps and sets are not. The ISeq interface is the internal interface for seqs. An object is a seq if it implements ISeq. - James On 8 October 2014 19:39, John Gabriele <jmg3...@gmail.com> wrote: > Reading Joy of Clojure, section 5.1.2, I'm hoping someone here can help me > understand the following: > > * `clojure.core/seq` returns a "seq" or a "sequence"? Likewise for `map` > and `filter`. > > * What is the difference between a "seq" and a "sequence"? > > * A seq may possibly be lazy, but vectors and lists are always > fully-realized, correct? > > * What does "seqable" mean? > > * Is Seq (ISeq?) or is Sequential the `first`/`rest` API? What is the > difference between ISeq and Sequential (see `seq?` & `sequential?`)? > > Thanks! > > -- > 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.
