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iOS

Posted by Mohamad Nur Amin Shahril
Mohamad Nur Amin Shahril
Courses Plus Student 1,689 Points

Don't understand Code Challenge on class interface

hi I just wrote on the code:

[myString length]; [myString uppercaseString];

but the answer said I did some syntax error. I don't understand why, I just followed one by one step guided by Mr Amit. actually what the question actually want, how can I state the length of the created string?

thanks,

3 Answers

Derrick Lee
Derrick Lee
7,743 Points
Derrick Lee
Derrick Lee
7,743 Points

Hello!

In the video, "myString" was used as an example. Basically, myString is the name of the NSString class.

However, in the code challenge, the name of the class was aString. It was seen declared as NSString *aString = @"Objective-C is fun";

So, in order to get the length of the string. We call the method, "length". Instead of calling "[myString length]", we call "[aString length]", without the quotes.

Hope I helped!

Mohamad Nur Amin Shahril
PLUS
Mohamad Nur Amin Shahril
Courses Plus Student 1,689 Points
Mohamad Nur Amin Shahril
Mohamad Nur Amin Shahril
Courses Plus Student 1,689 Points

Hi Derrick it works! I learn a valuable lesson from you. Thanks a lot pal! :)

Angel Mercedes
Angel Mercedes
234 Points
Angel Mercedes
Angel Mercedes
234 Points

Worked for me too. Thanks alot Derrick!