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iOS

Posted by Jason Larkin
Jason Larkin
13,970 Points

SWIFT for/if statement not working

This looks like it SHOULD work, but doesn't. Can anyone shed some light on why this isn't passing please? Thank you.

let months = [1, 2, 3]

for month in months {
    if months == 1 {
        println("January")
    } else if months == 2 {
        println("February")
    } else if months == 3 {
        println("March")
    }

}
Holt Hunter
Holt Hunter
4,629 Points

What kind of error does the console show?

2 Answers

Flor Antara
Flor Antara
12,372 Points

You should use month variable instead of months for the if else statement. Because months is your array and month is the value of each element of your array in a particular iteration.

I also highly recommend you to use a switch statement instead of if-else, this will produce a more readable code.

switch month {
case 1:
    println("January")
case 2:
    println("February")
case 3:
    println("March")
// add the other cases
}

Hope this help.

Christian McMullin
Christian McMullin
13,086 Points
Christian McMullin
Christian McMullin
13,086 Points

you are recalling items out of your array months so in order to do that you must call the name of the array with the index number like below.

remember when calling items from an array the first item is 0 and the second item is 1.

let months = [1, 2, 3]

for month in months {
    if month == months[0] {
        println("January")
    } else if month == months[1] {
        println("February")
    } else if month == months[2] {
        println("March")
    }

}