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Ruby

Adri Johari
Adri Johari
17,075 Points
Posted by Adri Johari
Adri Johari
17,075 Points

can someone explain to me when to use attr_writer only or attr_reader only?

can someone explain to me when to use attr_writer only or attr_reader only?

1 Answer

Alexander Davison
Alexander Davison
65,469 Points
Alexander Davison
Alexander Davison
65,469 Points

For data protection (aka encapsulation). Sometimes, you don't want other parts of the program accidentally writing to/reading from attributes. Of course, if you wanted to completely omit the possibility of reading/writing outside of the class, you can neither use attr_accessor, attr_reader, nor attr_writer. But sometimes (and often times), you want to have only either attr_writer or attr_reader.