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iOS

Matti Helenius
Matti Helenius
421 Points

Reading an item from array into a variable and assign the result to a constant named value. Can't understand what to do.

Hi,

I'm doing this exercise but im not sure how to do it. Link to the exercise; https://teamtreehouse.com/library/swift-3-collections-and-control-flow/introduction-to-collections/working-with-arrays (3/4).

"We also learned about reading values from an array. Retrieve the 5th item (remember array indexes start at 0) and assign the result to a constant named value."

Heres my code, I tried to comment it aswell. The last 2 lines are the ones im trying to save value into a variable but dont know how to pass this one. Help Guys

// Mission 1
// Making an array of 5 - values, 0 to 5
var arrayOfInts: [Int] = [0,1,2,3,4,5]

// Mission 2
// adding 1 more value with an append
arrayOfInts.append(6)

// adding 1 more value with a other style
arrayOfInts = arrayOfInts + [7]

//Mission 3
// saving arrays 5th items into a variable
let eiOleValia = arrayOfInts[4]

//print out the variable
eiOleValia

Thanks in advance!

1 Answer

Andrew Shook
Andrew Shook
31,709 Points

So the challenge actually ask you to assign the fifth element in the array to a constant called value. In all the other challenges they put variable and constant names in a different font so their name are a little bit more clear. I guess they forgot to do that for this challenge. Here is what you code should look like:

// Mission 1
// Making an array of 5 - values, 0 to 5
var arrayOfInts: [Int] = [0,1,2,3,4,5]

// Mission 2
// adding 1 more value with an append
arrayOfInts.append(6)

// adding 1 more value with a other style
arrayOfInts = arrayOfInts + [7]

//Mission 3
// saving arrays 5th items into a variable
let value = arrayOfInts[4]
Matti Helenius
Matti Helenius
421 Points

Thank you so much sir, I knew I was close. :)