CODEWITHSUNDEEP
objective-c
Anshu
Anshu

Reputation: 521

Objective C: which is faster alloc or copy

I want to ask which is faster:

Making a new class object using alloc+init or making a Copy of the existing class object?

edited:

I was reading the prototype pattern and I got this query. In prototype pattern, we make a clone or copy of the existing object.
So in which case copy is faster than alloc?

Upvotes: 0

Views: 208

Answers (1)

Caleb
Caleb

Reputation: 125007

The answer, of course, is it depends on what kind of object you're dealing with. For immutable objects such as NSString, calling -copy really only retains the original object. On the other hand, one can guess that copying an instance of NSMutableString involves both creating a new object and copying the data from the original object, and in such cases copying would obviously take longer than simply creating a new, empty object.

Upvotes: 1

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