Chapter 5. Sequences
What Are Sequences?
In Clojure, sequences are a unified way to read, write, and modify any data structure that is logically a collection of items. They are built into Clojure at a very basic level, and are by far the most convenient and idiomatic way to handle collections. They fill the role occupied by lists in other Lisp dialects. More than just a collection API, they are the framework around which program flow and logic are often constructed, and are designed to be as easy-to-use as the basis for recursion and higher-order function application.
Fundamentally, sequences are an abstraction, a common programming interface that generalizes behavior common to all collections and exposes it via a library of sequence functions
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