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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Add-a-variable-to-a-class-instance-at-runtime/J/add-a-variable-to-a-class-instance-at-runtime.j Normal file
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C=:<'exampleclass' NB. this will be our class name
V__C=: 0 NB. ensure the class exists
OBJ1=:conew 'exampleclass' NB. create an instance of our class
OBJ2=:conew 'exampleclass' NB. create another instance
V__OBJ1,V__OBJ2 NB. both of our instances exist
0
W__OBJ1 NB. instance does not have a W
|value error
W__OBJ1=: 0 NB. here, we add a W to this instance
W__OBJ1 NB. this instance now has a W
0
W__OBJ2 NB. our other instance does not
|value error