How can I check if an object in an NSArray is NSNull?

Question

I am getting an array with null value. Please check the structure of my array below:

 (
    \"< null>\"
 )

When I\'m trying to access

Answer 1

Consider this approach:

Option 1:

NSString *str = array[0];

if ( str != (id)[NSNull null] && str.length > 0 {
    // you have a valid string.
} 

Option 2:

NSString *str = array[0];
str = str == (id)[NSNull null]? nil : str;

if (str.length > 0) {
   // you have a valid string.
}