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iOS Objective-C Basics (Retired) Foundation Framework NSNumber

Naftali Beder
Naftali Beder
927 Points
Posted by Naftali Beder
Naftali Beder
927 Points

Getting error on challenge 3/4 and don't see why.

For challenge 3/4, I put in

NSNumber *planck = [[NSNumber alloc] initWithFloat:6.626];

and get an error. In Xcode the statement works correctly. Am I doing something wrong, or is the Treehouse challenge wrong?

2 Answers

Sérgio Leal
Sérgio Leal
7,803 Points

It seems that the challenge expects the number to be a double and not float. 

NSNumber *planck = [[NSNumber alloc] initWithDouble:6.626];

worked for me.

NSNumber *planck = @6.626;

should work also.

Naftali Beder
Naftali Beder
927 Points
Naftali Beder
Naftali Beder
927 Points

Yup some googling just showed that a lot of people have been confused about that question, I probably should've looked around first. I used initWithDouble and it worked.

Thanks!