Question

I edited some code to use a variable instead of a number.

NSUInteger *hoeveelChars = [eersteDertigTek length] - 30;

I changed

substringFromIndex: [eersteDertigTek    length] - 30] 

to

    substringFromIndex: [eersteDertigTek    length] - hoeveelChars]

Gives me the error invalid operands to binary expression (‘nstuinteger”(aka”nisgned int”) and (‘nstuinteger”(aka”nisgned int”)).

Not sure how to fixe this since I do need to have the – number as a variable is there anyone that knows a solution to this?

Answer 1

Just use

NSUInteger hoeveelChars = [eersteDertigTek length] - 30;

NSUInteger is not a class. See Foundation Data Types Reference.