iOS 12 Programming for Beginners
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Iterating over an array

It would be nice if we could see a list of states in our array. Earlier, you learned that for...in loops work with sequences. Since our array is a sequence, we can use for...in loops to loop through each element. When working on a project that has arrays, it is helpful to use a print statement inside a for...in loop. This lets us print every item in our array to the Debug Panel. So, let's use a for...in loop to look at the contents of our array:

for state in states { 
  print(state) 
} 

This is how our code and output should now look: