`class Symbol`

include Comparable[Symbol]

A name, written :name (or :"any text"): interned, so equal symbols are the same value and compare in constant time. Used for hash keys, options and enum-like values.

<prelude>:2704

Methods

`def <=>(other: Symbol) -> Int`

Compares the names as strings.

<prelude>:2709

`def to_s -> String`

The name, without the colon.

<prelude>:2711

`def to_sym -> Symbol`

The symbol itself.

<prelude>:2713

`def inspect -> String`

The literal: :abc, quoted when the name is not an identifier.

:abc.inspect       # => ":abc"
:"a b".inspect     # => ":\"a b\""

<prelude>:2720

`def size -> Int`

The number of characters in the name.

<prelude>:2722

`def length -> Int`

The number of characters in the name.

<prelude>:2724

`def empty? -> Bool`

Whether the name is empty (:"").

<prelude>:2726

`def upcase -> Symbol`

The symbol with the name in upper case.

<prelude>:2728

`def downcase -> Symbol`

The symbol with the name in lower case.

<prelude>:2730

`def capitalize -> Symbol`

The symbol with the name's first character in upper case and the rest in lower case.

<prelude>:2733

`def succ -> Symbol`

The symbol whose name is the name's successor, as String#succ.

:az.succ   # => :ba

<prelude>:2739

`def start_with?(*prefixes: String) -> Bool`

Whether the name starts with one of prefixes.

<prelude>:2741

`def end_with?(*suffixes: String) -> Bool`

Whether the name ends with one of suffixes.

<prelude>:2743