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iOS Objective-C Basics (Retired) Foundation Framework NSNumber

Zbyszek Pietras
Zbyszek Pietras
640 Points

initializing NSNumber difference

how is difference between initializng NSNumber object with

NSNumber *alpha; alpha = [[NSNumber alloc] initWithFloat: 3.54];

and

NSNumber *alpha = @3.54 ?

and

NSNumber *alpha = [NSNumber initWithFloat: 3.54];

Can I use any way from these above?