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iOS Object-Oriented Objective-C Memory, Arrays and Loops, Oh My! NSArrays and For In Loops

Rodrigo Alarcon
Rodrigo Alarcon
8,028 Points
Posted by Rodrigo Alarcon
Rodrigo Alarcon
8,028 Points

Please help me

Create a "for in" loop to iterate over drinks and print out each drink name using NSLog.

nsarray.mm 
NSArray *drinks = @[@"juice", @"water", @"coffee" ];

for (*drinks) {
NSLog("%@", drinks)
}

1 Answer

Chase Marchione
Chase Marchione
155,055 Points
Chase Marchione
Chase Marchione
155,055 Points

Hi Rodrigo,

  • We're missing an '@' before that first argument to NSLog.

  • To have our for loop cycle through each element of our NSArray, we'll want to use the 'in' keyword. We'll write the condition of our for loop as if to say 'for each NSString element in drinks...', and then the rest of the loop tells the compiler what to do for each element.

NSArray *drinks = @[@"juice", @"water", @"coffee"];

for (NSString *drink in drinks) {
  NSLog(@"%@", drink);
}

Hope this helps!