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iOS Swift 2.0 Collections and Control Flow Control Flow With Loops For In Loops

Posted by Gustav Gesar
Gustav Gesar
2,353 Points

At the For In Loops Objective

In the objective I wrote:

var results: [Int] = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

for multiplier in results { results.append(multiplier * 6) } results.removeAtIndex(0) results.removeAtIndex(0) results.removeAtIndex(0) results.removeAtIndex(0) results.removeAtIndex(0) results.removeAtIndex(0) results.removeAtIndex(0) results.removeAtIndex(0) results.removeAtIndex(0) results.removeAtIndex(0) print(results )

is there a better way of doing this?

1 Answer

swiftfun
swiftfun
4,039 Points

Hello Gustav,

Let me guide you through the process.

A For In statement will loop through an entire range. In this case your objective is to "loop" through 1 to 10, and multiply each number times 6.

You can loop thru a range by simply stating:

for valueGoesHere in 1...10 {
}

Checking your code you are trying to loop the results array- instead you should loop 1...10 and then append to results as you did. As well you should leave the array empty (the objective is to append the results to it).

Code below, hope now you understand :)

for multiplier in 1...10 {
results.append(multiplier*6)}