September 2015
Intermediate to advanced
198 pages
4h 52m
English
Content preview from Clojure High Performance Programming - Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Persistent data structures
As we've noticed in the previous section, Clojure's data structures are not only immutable, but can produce new values without impacting the old version. Operations produce these new values in such a way that old values remain accessible; the new version is produced in compliance with the complexity guarantees of that data structure, and both the old and new versions continue to meet the complexity guarantees. The operations can be recursively applied and can still meet the complexity guarantees. Such immutable data structures as the ones provided by Clojure are called persistent data structures. They are "persistent", as in, when a new version is created, both the old and new versions "persist" in terms of both the ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.