How can I test an NSString for being nil?

Question

Can I simply use

if(myString == nil)

For some reason a string that I know is null, is failing this statement.

Answer 1

you may check your getting string using this

   if(myString==(id) [NSNull null] || [myString length]==0 || [myString isEqualToString:@""])
    {
     //String is null or bad response
    }