> On May 17, 2016, at 7:48 AM, Neil Faiman via swift-users
> <swift-users@swift.org> wrote:
>
> “You can provide a default value for a stored property as part of its
> definition, as described in Default Property Values. You can also set and
> modify the initial value for a stored property during initialization. This is
> true even for constant stored properties, as described in Assigning Constant
> Properties During Initialization.” (Classes and Structures / Stored
> Properties)
You can assign the value of an as-yet-unassigned ‘let’ property, once. If that
happens in the default initialization phase (before any initializer methods
run), then you’ve used up that chance. The initializer would be setting a
second value, which isn’t allowed.
Read up on the phases of initialization in the Swift book.
—Jens
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