adspace


What is factory methods ? What is the advantage of using it ?

Answer Posted / babu

Class factory methods are implemented by a class as a convenience for developers. These methods combine allocation and initialisation in a single step and return the created object.

NSDate:

Eg: + (id)dataWithBytes:(const void *)bytes length:(unsigned)length;

NSDictionary

Eg:+ (instancetype)dictionary;

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is nsmanagedobjectcontext? What are the different concurrency types? Explain them.

832


What is latest ios version?

1003


What is the purpose of reuseidentifier?

920


What are transient properties?

925


Why do all model object attributes get marked with @dynamic and not synthesised?

976


In a single model, can I have few entities in one sqlite db file and remaining in another sqlite db file?

991


What is latest xcode version?

920


What's the latest version of ios?

977


What is latest version of ios?

867


What are the different store migration options? How do they work?

879


How to handle concurrency problems in core data?

1017


Explain parent-child context setup. How does it work? What are the advantages?

875


What is dependency management tools?

877


Why do all model object attributes get marked with @dynamic and not synthesised? What does @dynamic mean?

850