Absolutely lost with a code challenge dealing with loops. Can someone help me with the code for task 1 and 2.

Question

In this task, we have an array of numbers and we want to compute the sum of its values.
We have a variable ,sum, that will store the value of the sum of numbers from the array.
We also have a variable ,counter, which we will use to track the number of iterations of the while loop.
Step 1: Create a while loop. The while loop should continue as long as the value of counter is less than the number of items in the array. (Hint: You can get that number by using the count property)
```loops.swift
let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0
// Enter your code below
while counter < numbers.count {
      sum += numbers[counter]
      counter++
}
```

andren · Answer

The problem is "counter++", in Swift 3 they dropped support for the ++ and -- operators, using them is no longer accepted, and will lead your code to crash. If you replace it with some other incrementing code like "+= 1" like this:
```swift
let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0
// Enter your code below
while counter < numbers.count {
      sum += numbers[counter]
      counter += 1
}
```
Then your solution will pass since the rest of your code is perfectly fine.

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chris emmett

chris emmett

Absolutely lost with a code challenge dealing with loops. Can someone help me with the code for task 1 and 2.

1 Answer

andren

andren