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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Identity, value, and epochal time model
One of the principal virtues of Clojure is its simple design that results in malleable, beautiful composability. Using symbols in place of pointers is a programming practice that has existed for several decades now. It has found widespread adoption in several imperative languages. Clojure dissects that notion in order to uncover the core concerns that need to be addressed. The following subsections illustrate this aspect of Clojure.
We program using logical entities to represent values. For example, a value of 30 means nothing unless it is associated with a logical entity, let's say age. The logical entity age is the identity here. Now, even though age represents a value, the value may change with time; this ...
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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.