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Re:Functional Language Features in Rust – Iterators and Clos... by computerphage on Tuesday March 07, 2017 @04:49PM (#13815314)
For context: there's a rewrite of the rust book in progress for a while now. This is a chapter of that book.
Re:Functional Language Features in Rust – Iterators and Clos... by steveklabnik on Tuesday March 07, 2017 @05:06PM (#13815499)
Yes. Co-author here, happy to answer any questions or hear feedback on the text, as usual.

Incidentally, I just finished the build system stuff today to get the new book shipped on doc.rust-lang.org; that slates it to land in Rust 1.18. It will still be a draft, but this is one more step towards it being finished.