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iOS Swift 2.0 Collections and Control Flow Control Flow With Loops Working with Loops

Posted by Shane Gilpatrick
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Shane Gilpatrick
Android Development Techdegree Student 692 Points

Cant figure out how to do 2nd part of task.

I know the 1st task is

while counter < numbers.count {
    print(numbers[counter])
    counter++
}

but I can not figure out the 2nd part which is this... Using the value of counter as an index value, retrieve each value from the array and add it to the value of sum.

For example: sum = sum + newValue. Or you could use the compound addition operator sum += newValue where newValue is the value retrieved from the array.

theodore eisensøe
theodore eisensøe
1,107 Points
theodore eisensøe
theodore eisensøe
1,107 Points

i am pretty sure this is what you are looking for,

while counter < 1 { print(counter) counter++ }

Shane Gilpatrick
.a{fill-rule:evenodd;}techdegree
Shane Gilpatrick
Android Development Techdegree Student 692 Points

I tried that and it did not work... Im going to keep messing with it

1 Answer

Greg Kaleka
Greg Kaleka
39,021 Points
Greg Kaleka
Greg Kaleka
39,021 Points

Hi Shane,

You're already correctly using counter as an index. Now, instead of printing that value, add it to the variable sum:

while counter < numbers.count {
    sum += numbers[counter]
    counter++
}

Make sense?

Cheers :beers:

Greg

Shane Gilpatrick
.a{fill-rule:evenodd;}techdegree
Shane Gilpatrick
Android Development Techdegree Student 692 Points

Yes it makes perfect sense. I knew it would be something that i was just over looking.

Thank You!

Shane.