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Daniel Lambrecht
iOS Development Techdegree Student 5,302 Pointshow to use counter to choose which item in the array to add?
ive tried several combinations: sum += numbers[(counter)] sum += numbers[(counter)] sum += numbers[counter]
im lost :D
let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0
// Enter your code below
while counter <= sum {
sum += numbers[(counter)]
counter += 1
}
1 Answer
andren
28,558 PointsYou don't need to have parenthesis around the counter variable but that is not actually what causes an issue with your code. The problem is that the condition for the loop is incorrect. The loop is meant to run while counter is less than the number of items in the numbers array. Your looping condition states that it should run until it is less than or equal to the sum variable, which is incorrect.
You can get the number of items in the numbers array using the count property so the loop should look like this:
while counter < numbers.count {
sum += numbers[counter]
counter += 1
}
Other than the condition (and the unnecessary parenthesis) your code was correct.
Daniel Lambrecht
iOS Development Techdegree Student 5,302 PointsDaniel Lambrecht
iOS Development Techdegree Student 5,302 PointsWow, thank you so much!! :)