FalseClass

Class

The global value false is the only instance of class FalseClass and represents a logically false value in boolean expressions. The class provides operators allowing false to participate correctly in logical expressions.

Instance Methods

false & object → false

nil & object → false

object.c View on GitHub

          
            static VALUE
false_and(VALUE obj, VALUE obj2)
{
    return Qfalse;
}

Returns false:

Example

false & true       # => false
false & Object.new # => false

Argument object is evaluated:

Example

false & raise # Raises RuntimeError.

true === other → true or false

false === other → true or false

nil === other → true or false

object.c View on GitHub

          
            #define case_equal rb_equal

Returns true or false.

Like Object#==, if object is an instance of Object (and not an instance of one of its many subclasses).

This method is commonly overridden by those subclasses, to provide meaningful semantics in case statements.

false ^ object → true or false

nil ^ object → true or false

object.c View on GitHub

          
            #define false_xor true_and

Returns false if object is nil or false, true otherwise:

Example

nil ^ nil        # => false
nil ^ false      # => false
nil ^ Object.new # => true

inspect

object.c View on GitHub

An alias for to_s

false.to_s → "false"

object.c View on GitHub

          
            VALUE
rb_false_to_s(VALUE obj)
{
    return rb_cFalseClass_to_s;
}

The string representation of false is “false”.

false | object → true or false

nil | object → true or false

object.c View on GitHub

          
            #define false_or true_and

Returns false if object is nil or false, true otherwise:

Example

nil | nil        # => false
nil | false      # => false
nil | Object.new # => true