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Ary de Oliveira
28,298 PointsSwift
Challenge Task 2 of 4 and 3 and 4 pls
Now that we have an array declared, since it is a mutable array, we can add and remove items. Let's start by adding two more values to our existing array. There are two ways we can add items to an array and I want you to give both a try. Add one item to the array using the append method.
Remember: We invoke methods on an array using a period or dot. After the dot we write out the method name and a value to append in parentheses following the name.
Add another item to the array by concatenating an array. When concatenating, assign the results of the expression back to arrayOfInts.
// Enter your code below
var arrayOfInts = [1,2,3,4,5,6]
arrayOfInts.append (8)
2 Answers
Christian Kroul
9,849 PointsHello Ary de Oliveira, Here is your answer
// Enter your code below
var arrayOfInts = [0,1,2,3,4,5]
let value = arrayOfInts[4]
arrayOfInts.append(6)
arrayOfInts = arrayOfInts + [7]
let discardedValue = arrayOfInts.removeAtIndex(5)
//Do not Copy: Just read
you could also use += like this
arrayOfInts += [7]
Christian Kroul
9,849 PointsBasically its going from an array, and each array has an index value.
Kevin McKew
2,977 PointsKevin McKew
2,977 PointsHi Christian,
Can you explain this line? I was just stuck on this and that was the only part i couldn't understand. let value = arrayOfInts[4]
Thanks for the help!