TrueClass === TrueClass

[Bojan Mihelac]

Hi all,
why is:

TrueClass === TrueClass # false
Object === Object # true

Documentation states that === method is used to provide meaningful
semantic in case statements. Can anyone explain me why some classes
returns false?

thnx,
Bojan Mihelac

 

[Vincent Fourmond]

Hi all,
why is:

TrueClass === TrueClass # false
Object === Object # true

Documentation states that === method is used to provide meaningful
semantic in case statements. Can anyone explain me why some classes
returns false?

=== returns true with one class if you 'compare' it to an instance of
the class:

irb(main):002:0> TrueClass == TrueClass
=> true
irb(main):003:0> TrueClass === TrueClass
=> false
irb(main):004:0> TrueClass === true
=> true

Cheers,

Vince

 

[David Chelimsky]

=== returns true with one class if you 'compare' it to an instance of
the class:

irb(main):002:0> TrueClass == TrueClass
=> true
irb(main):003:0> TrueClass === TrueClass
=> false
irb(main):004:0> TrueClass === true
=> true

Cheers,

Ah - so Object === Object returns true because the second Object is an
instance of the first Object. How deceiving.

 

[Bojan Mihelac]

=== returns true with one class if you 'compare' it to an instance of
the class:

irb(main):002:0> TrueClass == TrueClass
=> true
irb(main):003:0> TrueClass === TrueClass
=> false
irb(main):004:0> TrueClass === true
=> true

Cheers,

Vince

Thanx Vince, just what I looked for.
Bojan

 

[David Chelimsky]

If you are looking for a language in which not everything is an object,
there are plenty around

Oh, you misunderstand. Let me rephrase:

"How deliciously deceiving."