Notes posted by rafaelss

RSS feed
November 9, 2009
0 thanks

overwrite

Replacing old value with new one

>> Module.const_set('MY_CONSTANT', 'value')
=> "value"
>> Module::MY_CONSTANT
=> "value"
>> Module.const_set('MY_CONSTANT', 'new value')
(irb):3: warning: already initialized constant MY_CONSTANT
=> "new value"
>> Module::MY_CONSTANT
=> "new value"

or

>> Kernel.const_set('MY_CONSTANT', 'value')
=> "value"
>> MY_CONSTANT
=> "value"
>> Kernel.const_set('MY_CONSTANT', 'new value')
(irb):3: warning: already initialized constant MY_CONSTANT
=> "new value"
>> MY_CONSTANT
=> "new value"