4.15 Sequences and Streams

Sequences and streams abstract over iteration of elements in a collection. Sequences allow iteration with for macros or with sequence operations such as sequence-map. Streams are functional sequences that can be used either in a generic way or a stream-specific way. Generators are closely related stateful objects that can be converted to a sequence and vice-versa.

4.15.1 Sequences

4.15.1.1 Sequence Predicate and Constructors

4.15.1.2 Sequence Conversion

4.15.1.3 Additional Sequence Operations

4.15.1.3.1 Additional Sequence Constructors

4.15.2 Streams

4.15.3 Generators

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1	Language Model
2	Notation for Documentation
3	Syntactic Forms
4	Datatypes
5	Structures
6	Classes and Objects
7	Units
8	Contracts
9	Pattern Matching
10	Control Flow
11	Concurrency and Parallelism
12	Macros
13	Input and Output
14	Reflection and Security
15	Operating System
16	Memory Management
17	Unsafe Operations
18	Running Racket
	Bibliography
	Index

4.1	Equality
4.2	Booleans
4.3	Numbers
4.4	Strings
4.5	Byte Strings
4.6	Characters
4.7	Symbols
4.8	Regular Expressions
4.9	Keywords
4.10	Pairs and Lists
4.11	Mutable Pairs and Lists
4.12	Vectors
4.13	Boxes
4.14	Hash Tables
4.15	Sequences and Streams
4.16	Dictionaries
4.17	Sets
4.18	Procedures
4.19	Void
4.20	Undefined