4 Datatypes

+内建数据类型 in Racket 指南 introduces Datatypes.

Each pre-defined datatype comes with a set of procedures for manipulating instances of the datatype.

    4.1 Booleans and Equality

    4.2 Numbers

    4.3 Strings

    4.4 Byte Strings

    4.5 Characters

    4.6 Symbols

    4.7 Regular Expressions

    4.8 Keywords

    4.9 Pairs and Lists

    4.10 Mutable Pairs and Lists

    4.11 Vectors

    4.12 Boxes

    4.13 Hash Tables

    4.14 Sequences and Streams

    4.15 Dictionaries

    4.16 Sets

    4.17 Procedures

    4.18 Void

    4.19 Undefined