I am trying to figure out how I can use a variable outside of the function it was created in without using return. Example:
import UIKit var Finalvar = "test" func test(var1: String) { var Finalvar = var1 } test(var1: "Done") print(Finalvar) as output I get "test" instead of "done", how can I change that?
Finalvar is not Finalvar The global variable Finalvar and the local variable Finalvar are two different objects.
If you declare a local variable with the same name as a global variable the global variable is hidden.
Remove the var keyword in the function
var finalVar = "test" func test(var1: String) { finalVar = var1 } test(var1: "Done") print(finalVar) In a class or struct you can use self to indicate to access the property.
self.finalVar = var1 Note : Variable (and function) names are supposed to start with a lowercase letter.
You are declaring a new Finalvaragain in your func test(), just leave out the declaration out in your function. The code below should work:
import UIKit var finalVar = "test" func test(var1: String) { finalVar = var1 } test(var1: "Done") print(finalVar) One additional important thing -> please begin your variables with lowercase instead of a capital letter
Finalvar = var1. However, most importantly, read the Swift book as a start, you seem to lack key concepts such as scopes of variables. Also variable and function names should be lower-camelCase (finalvar).