struct Bool
Overview
Bool has only two possible values: true and false. They are constructed using these literals:
true  # A Bool that is true
false # A Bool that is falseSee Bool literals in the language reference.
Defined in:
bool.crjson/to_json.cr
primitives.cr
uri/params/to_www_form.cr
yaml/to_yaml.cr
Constructors
Instance Method Summary
- 
        #!=(other : Bool) : Bool
        
          Returns trueifselfis not equal to other.
- 
        #&(other : Bool) : Bool
        
          Bitwise AND. 
- 
        #==(other : Bool) : Bool
        
          Returns trueifselfis equal to other.
- 
        #^(other : Bool) : Bool
        
          Exclusive OR. 
- 
        #|(other : Bool) : Bool
        
          Bitwise OR. 
- #clone : Bool
- #hash(hasher)
- #to_json(json : JSON::Builder) : Nil
- 
        #to_s(io : IO) : Nil
        
          Appends "true"fortrueand"false"forfalseto the given IO.
- 
        #to_s : String
        
          Returns "true"fortrueand"false"forfalse.
- 
        #to_unsafe : LibC::Int
        
          Returns an integer derived from the boolean value, for interoperability with C-style booleans. 
- #to_yaml(yaml : YAML::Nodes::Builder) : Nil
Instance methods inherited from struct Value
  
  
    
      ==(other : JSON::Any)==(other : YAML::Any)
==(other) ==, dup dup
Instance methods inherited from class Object
  
  
    
      ! : Bool
    !, 
    
  
    
      !=(other)
    !=, 
    
  
    
      !~(other)
    !~, 
    
  
    
      ==(other)
    ==, 
    
  
    
      ===(other : JSON::Any)===(other : YAML::Any)
===(other) ===, =~(other) =~, as(type : Class) as, as?(type : Class) as?, class class, dup dup, hash(hasher)
hash hash, in?(collection : Object) : Bool
in?(*values : Object) : Bool in?, inspect(io : IO) : Nil
inspect : String inspect, is_a?(type : Class) : Bool is_a?, itself itself, nil? : Bool nil?, not_nil!(message)
not_nil! not_nil!, pretty_inspect(width = 79, newline = "\n", indent = 0) : String pretty_inspect, pretty_print(pp : PrettyPrint) : Nil pretty_print, responds_to?(name : Symbol) : Bool responds_to?, tap(&) tap, to_json(io : IO) : Nil
to_json : String to_json, to_pretty_json(indent : String = " ") : String
to_pretty_json(io : IO, indent : String = " ") : Nil to_pretty_json, to_s(io : IO) : Nil
to_s : String to_s, to_yaml(io : IO) : Nil
to_yaml : String to_yaml, try(&) try, unsafe_as(type : T.class) forall T unsafe_as
Class methods inherited from class Object
  
  
    
      from_json(string_or_io, root : String)from_json(string_or_io) from_json, from_yaml(string_or_io : String | IO) from_yaml
Macros inherited from class Object
  
  
    
      class_getter(*names, &block)
    class_getter, 
    
  
    
      class_getter!(*names)
    class_getter!, 
    
  
    
      class_getter?(*names, &block)
    class_getter?, 
    
  
    
      class_property(*names, &block)
    class_property, 
    
  
    
      class_property!(*names)
    class_property!, 
    
  
    
      class_property?(*names, &block)
    class_property?, 
    
  
    
      class_setter(*names)
    class_setter, 
    
  
    
      def_clone
    def_clone, 
    
  
    
      def_equals(*fields)
    def_equals, 
    
  
    
      def_equals_and_hash(*fields)
    def_equals_and_hash, 
    
  
    
      def_hash(*fields)
    def_hash, 
    
  
    
      delegate(*methods, to object)
    delegate, 
    
  
    
      forward_missing_to(delegate)
    forward_missing_to, 
    
  
    
      getter(*names, &block)
    getter, 
    
  
    
      getter!(*names)
    getter!, 
    
  
    
      getter?(*names, &block)
    getter?, 
    
  
    
      property(*names, &block)
    property, 
    
  
    
      property!(*names)
    property!, 
    
  
    
      property?(*names, &block)
    property?, 
    
  
    
      setter(*names)
    setter
    
  
    
  Constructor Detail
Instance Method Detail
Bitwise AND. Returns true if this bool and other are true, otherwise returns false.
false & false # => false
false & true  # => false
true & false  # => false
true & true   # => trueExclusive OR. Returns true if this bool is different from other, otherwise returns false.
false ^ false # => false
false ^ true  # => true
true ^ false  # => true
true ^ true   # => falseBitwise OR. Returns true if this bool or other is true, otherwise returns false.
false | false # => false
false | true  # => true
true | false  # => true
true | true   # => trueReturns an integer derived from the boolean value, for interoperability with C-style booleans.
The value is 1 for true and 0 for false.