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Troy Erby
6,332 PointsTrouble calling Strings from functions
I'm getting an error message when I try to call a function where the variable is a string. It seems to work fine when the variable is an Int
func works (number:Int) {
println("This works with \(number)")
}
works(8) // so when I call the function in this statement everything goes smoothly
func fail (word:String) {
println("This doesn't work with \(word)")
}
fail(Tom) // I don't get an error until I try to call the func, at which time I get an error message which says, "Use of unresolved identifier 'Tom'
can someone help me understand what I'm missing. Thanks in advance.
3 Answers
Damien Watson
27,419 PointsHey Troy,
Your function 'fail' is looking for a string. You define a string by surrounded in quotes. Otherwise it will take 'Tom' to be a variable and try to resolve it. Try instead:
fail("Tom")
Michael Hulet
47,912 PointsWhen you're calling it, you're not passing in a String properly. Strings go in double quotes. Instead, the compiler thinks you're trying to reference a variable named Tom. Try calling it like this:
//Despite the function name, this will work
fail("Tom")
Damien Watson
27,419 PointsHaha, good point Michael. Does that mean it is currently working as expected?
Michael Hulet
47,912 PointsI haven't tested it in a playground, but everything else looks good to me. I'd bet my hat that it works
Troy Erby
6,332 PointsBingo, that did the trick. Thanks for the help.