|
|||
| Previous < |
Contents ^
|
Next >
|
|
|
| class Symbol |
|
Symbol object represents a Ruby name and is generated
automatically using the :name literal syntax. The same Symbol
object will be created for a given name string for the duration of a
program's execution, regardless of the context or meaning of that
name. Thus if Fred is a constant in one context, a method in
another, and a class in a third, the Symbol :Fred will be
the same object in all three contexts.
module One
|
||
class Fred
|
||
end
|
||
$f1 = :Fred
|
||
end
|
||
module Two
|
||
Fred = 1
|
||
$f2 = :Fred
|
||
end
|
||
def Fred()
|
||
end
|
||
$f3 = :Fred
|
||
$f1.id
|
» |
2299150
|
$f2.id
|
» |
2299150
|
$f3.id
|
» |
2299150
|
| instance methods | ||
| id2name | sym.id2name -> aString |
Returns the name corresponding to sym.
|
| inspect | sym.inspect -> aString |
Returns the representation of sym as a symbol literal.
|
| to_i | sym.to_i -> aFixnum | Returns an integer that is unique for each symbol within a particular execution of a program. |
| to_s | sym.to_s -> aString |
Synonym for
Symbol#id2name
.
|
| Previous < |
Contents ^
|
Next >
|