Is it possible to edit the value of a public variable from another module?

Question

Can you edit the value of a public variable from another module or does that variable have to be open.

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My understanding of public/open in swift 3 is:

• Public classes can be made in another module but only open classes can be subclassed in another module.
• Public functions can be called in another module but only open functions can be overwritten in another module.
• But I am unsure about about variables.

Answer 1

You most definitely can! Here is a great way you can accomplish it:

In the module that contains the variable that you wish to manipulate:

// Must be declared globally
public var someValue = "hi"

In a different module that you wish to manipulate the variable from:

// Initialize the module that holds the variable you want to manipulate
var myModule = SomeModule()

// Manipulate the variable (someValue)
myModule.someValue = "bye"

The variable someValue will now have a value of "bye"