What is the difference between (+) and (-) operator in obj c function
- by niceramar
Hi i am new to iphone and starts to learning Obj c.
i have notice the function definition, for some function we are using (-) and for some function we are using (+)
Example:
+ (id)requestWithURL:(NSURL *)theURL
– initWithURL:
what the difference between those two operator / symbol's usage?
thanks!