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Anna Benson
2,728 PointsHaving trouble iterating a for loop correctly within an array
I am stuck on this code challenge: "Inside the body of the loop, we're going to use the multiplier to get the multiple of 6. For example, if the multiplier is 1, then the multiple is 1 times 6, which is equal to 6. Once you have a value, append it to the results array. This way once the for loop has iterated over the entire range, the array will contain the first 10 multiples of 6."
I tried out my code on the playground, and when I ran it and took a look at the Debug area, it appeared that my code printed the first ten multiples of 6.
However, I got an error code saying my results array does not contain the first 10 multiples of 6.
Is there something I'm missing?
// Enter your code below
var results: [Int] = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
for multiplier in 1...10 {
print(multiplier * 6)
}
3 Answers
Steven Deutsch
21,046 PointsHey Anna Benson,
You don't need any pre-populated values in the results array. Your for loop will populate the empty array. You have your loop set up properly, however, you're not executing the right statement inside of it. The code you want to execute in each iteration of the loop is results.append(multiplier * 6). This code will add the values of multiplier times 6 to the results array for each iteration. See my code below:
// Enter your code below
var results: [Int] = []
for multiplier in 1...10 {
results.append(multiplier * 6)
}
Hope this helps! Good Luck!
Anna Benson
2,728 PointsThank you for clarifying!
Alex Napier
2,446 PointsSteven,
Thank you for the answer! Although, appending to results and iterating a for in loop with an empty array already declared was not covered in the preceding video. That is most likely the culprit for us having to go through hoops to find the answer. Again, thanks. ***Other than this issue, it's a fantastic and informative course!