► |  | The Racket Guide

1 | Welcome to Racket
2 | Racket Essentials
3 | Built-In Datatypes
4 | Expressions and Definitions
5 | Programmer-Defined Datatypes
6 | Modules
7 | Contracts
8 | Input and Output
9 | Regular Expressions
10 | Exceptions and Control
11 | Iterations and Comprehensions
12 | Pattern Matching
13 | Classes and Objects
14 | Units
15 | Reflection and Dynamic Evaluation
16 | Macros
17 | Creating Languages
18 | Concurrency and Synchronization
19 | Performance
20 | Parallelism
21 | Running and Creating Executables
22 | More Libraries
23 | Dialects of Racket and Scheme
24 | Command-Line Tools and Your Editor of Choice
| Bibliography
| Index

▼ | 3 | Built-In Datatypes

3.1 | Booleans
3.2 | Numbers
3.3 | Characters
3.4 | Strings (Unicode)
3.5 | Bytes and Byte Strings
3.6 | Symbols
3.7 | Keywords
3.8 | Pairs and Lists
3.9 | Vectors
3.10 | Hash Tables
3.11 | Boxes
3.12 | Void and Undefined

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### 3`` Built-In Datatypes

The previous chapter introduced some of Racket’s built-in datatypes: numbers, booleans, strings, lists, and procedures. This section provides a more complete coverage of the built-in datatypes for simple forms of data.

3.1 Booleans
3.2 Numbers
3.3 Characters
3.4 Strings (Unicode)
3.5 Bytes and Byte Strings
3.6 Symbols
3.7 Keywords
3.8 Pairs and Lists
3.9 Vectors
3.10 Hash Tables
3.11 Boxes
3.12 Void and Undefined

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