Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial
Mohammed Alotaibi
Courses Plus Student 1,493 Pointswhat is wrong?
I don´t understand where is my mistake
// Enter your code below
var arrayOfInts = [1,2,3,4,5,6]
arrayOfInts.append(7)
[1,2,3,4,5,6,7] + [8]
arrayOfInts.count
arrayOfInts[5]
let value = arrayOfInts[5]
1 Answer
Deneen Edwards
5,626 Points// Create an Array of 6 numbers
var arrayOfInts = [1, 2, 3, 4, 5, 6]
// Add a 7th number using append method
arrayOfInts.append(7)
// Add an 8th number using concatenation and assign back to arrayOfInts
// NOTE: Use your variable, and assign the array back to the variable
arrayOfInts = arrayOfInts + [8] // OR This Way arrayOfInts += [8]
// Assign the 5th item in the array to constant value...NOTE: the array index starts at 0
let value = arrayOfInts[4]
//Remove the 6th item in the array and assign to discardedValue...NOTE: the array index starts at 0
let discardedValue = arrayOfInts.remove(at:5)
wwyattw
10,389 Pointswwyattw
10,389 PointsHi,
The challenge is to retrieve the 5th item. Counting array starts with 0. So use 4 to retrieve the 5th value.