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Bachir Kurdi
10,098 Pointswhat is wrong ?
The challenge is : Declare a third NSString variable named 'favorite' and assign a concatenated string to it by appending the variable named 'color' to the variable named 'preference'. (Remember to use the method 'stringByAppendingString').
my code is: NSString *color = @"purple"; NSString *preference = @"My favorite color is"; NSString *favorite = [color stringByAppendingString : preference];
what have i done wrong ?
5 Answers
Wenting Shi
13,562 PointsHi, you should call the stringByAppendingString method on variable preference instead of color.
Like this: NSString *favorite = [preference stringByAppendingString:color];
:)
agreatdaytocode
24,757 PointsHi Bachir,
You almost have it! switch the preference and color around.
NSString *color = @"Purple";
NSString *preference = @"My Favorite Color is";
NSString *favorite = [preference stringByAppendingString:color];
output 2014-07-26 23:02:10.007 Test [4821:607] My Favorite Color is Purple
Bachir Kurdi
10,098 Pointsok THANKS it worked but can you explain why it had to be like that and not the other way ?
Wenting Shi
13,562 PointsHi, for example:
NSString *string = [@"Hello," stringByAppendingString:@" World!"];
will give you "Hello, World!", this is just the way the method is implemented.
whenever you feel confused about how to use a function, just use shortcut "option + click" to access the apple documentation.
Have a good one!
Bachir Kurdi
10,098 Pointsok thanks guys you have been a great help :)