6.27 Keywords

8.12

6.27 Keywords🔗ℹ

A keyword by itself does not work as an expression, but keywords exist as values, and the #' operator can produce a keyword value. Keywords are always interned, and they are equal by == only when they are equal by ===.

See also #', which works for keywords as well as symbols.

Keywords are comparable, which means that generic operations like < and > work on keywords. Comparsion of two keywords is the same as comparing the string forms of the keywords.

annotation

Keyword

Matches keyword values.

function

fun Keyword.from_string(str :: ReadableString) :: Keyword

function

fun Keyword.from_symbol(sym :: Symbol) :: Keyword

Converts a string or symbol to a keyword with the same character content, not counting a keyword’s leading ~.

> Keyword.from_string("apple")
#'~apple
> Keyword.from_symbol(#'apple)
#'~apple

1	Rhombus Essentials
2	Collections and Iteration
3	Syntax Objects and Macros
4	Classes and Interfaces
5	Static Information and Binding
6	Core Reference
7	Meta and Macros Reference
8	Rhombus Static by Default
9	Libraries
10	Naming Conventions

6.1	General Forms
6.2	Definitions
6.3	Namespaces
6.4	Import
6.5	Export
6.6	Functions
6.7	Operators
6.8	Classes and Interfaces
6.9	Veneers
6.10	Mutable Variables and Assignment
6.11	Repetitions
6.12	Block
6.13	Conditionals
6.14	Matching
6.15	Iteration
6.16	Recursion
6.17	Context Parameters
6.18	Exceptions
6.19	Continuations
6.20	Implicit Forms
6.21	Static and Dynamic Lookup
6.22	Modules and Submodules
6.23	Booleans
6.24	Numbers
6.25	Characters
6.26	Strings
6.27	Keywords
6.28	Symbols
6.29	Byte Strings
6.30	Lists
6.31	Pairs and Pair Lists
6.32	Mutable Lists
6.33	Arrays
6.34	Maps
6.35	Sets
6.36	Boxes
6.37	Indexables
6.38	Listables
6.39	Sequences
6.40	Appendables
6.41	Comparables
6.42	Paths
6.43	Source Locations
6.44	Void
6.45	Equality
6.46	Dot
6.47	Multiple Values
6.48	Annotations
6.49	Enumerations
6.50	Input and Output
6.51	Eval
6.52	Syntax Objects
6.53	Syntax Classes
6.54	Simple Expression Macros
6.55	Unit Testing