[swift-users] Bls: How to merge two dictionaries?

[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.
Then how NSMutableDictionary.addEntries() solve this issue?
I thought with Swift design, we could merge some compatible dictionaries simply by using + operator array. 
–Mr Bee
 

    Pada Jumat, 11 November 2016 15:14, Ray Fix <rayfix at gmail.com> menulis:
 

 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 at 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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