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Ben Masel
2,004 PointsWhere do i put the addition operator?
Where do i put the addition operator? i can't figure it out! I just started array's and i don't completely understand.
// Enter your code below
var arrayOfInts: [Int] = [1,2,3,4,5,6,7]
arrayOfInts.append(8)
arrayOfInts.insert((9),atIndex:8)
1 Answer
Jennifer Nordell
Treehouse TeacherHi there! In the first task I believe you were supposed to have 6 elements. It seems you added a seventh by adding it directly into the array. Your second line is spot on, though! 
// Enter your code below
var arrayOfInts: [Int] = [1,2,3,4,5,6]
arrayOfInts.append(7)
arrayOfInts + [8]
Here we have our array which we originally set up, which you obviously did just fine. And then we use the append method on the array to add in the number 7. So far, so good. Now the last line we're concatenating another array to our original array. In reality, that second array could hold just about anything. I picked the number 8 because it makes sense given the example. But it could be arrayOfInts + [8, 2909, 3491]. You would then have an array that looked like this [1, 2, 3, 4, 5, 6, 7, 8, 2909, 3491]. Hope this is helpful!
