Hi Mr Bee,
The reason I don’t think it is provided is because it is difficult to know what
to do when keys collide. You could easily write such a thing and decide your
own policy. For example:
let d1 = ["Apples": 20, "Oranges": 13]
let d2 = ["Oranges": 3, "Cherries": 9]
extension Dictionary {
func merged(with another: [Key: Value]) -> [Key: Value] {
var result = self
for entry in another {
result[entry.key] = entry.value
}
return result
}
}
let result = d1.merged(with: d2)
> On Nov 11, 2016, at 12:05 AM, Mr Bee via swift-users <swift-users@swift.org>
> wrote:
>
> Hi,
>
> I'm using Swift v3 on an El Capitan machine. I want to merge a dictionary
> into another compatible dictionary. However, I couldn't find addEntries
> function in the dictionary instance, like it was on NSMutableDictionary
> (https://developer.apple.com/reference/foundation/nsmutabledictionary).
>
> Does that mean that Swift standard library won't provide such similar
> function for native Swift dictionary? Or is there any other way of doing that
> natively? I mean using the built-in Swift's native dictionary function
> (https://developer.apple.com/reference/swift/dictionary), no need to write a
> custom function, or bridging to NSMutableDictionary.
>
> Thank you.
>
> Regards,
>
> –Mr Bee
>
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