Swift transform dictionary into array using properties of object

Question

I have a dictionary with objects that contains array. For example let's sat each object Factory has object manager factory.manager.

Dictionary:

["key1": factory1]
["key2": factory2]
["key3": factory3]

I need to get all managers by transforming dictionary to an array:

[factory1.manager, factory2.manager, factory3.manager]

How can I do it using map for example by avoiding using for cycle.

Array(dictionary.values.map{$0.manager})

sketchyTech
– sketchyTech

2016-03-18 14:13:20 +00:00
Commented Mar 18, 2016 at 14:13 — sketchyTech
– sketchyTech, Commented Mar 18, 2016 at 14:13

sketchyTech · Accepted Answer · 2016-03-18 14:18:15Z

2

This will create an Array of those values:

   Array(dictionary.values.map{$0.manager})

assuming the dictionary instance is of type [String:Factory]

answered Mar 18, 2016 at 14:18

sketchyTech

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7 Comments

Oleksandr Matrosov Over a year ago

hey dude, thanks) one more question can I do it for getting Set?

Oleksandr Matrosov Over a year ago

yea it really returns what I mention )

sketchyTech Over a year ago

you sound surprised :)

sketchyTech Over a year ago

a set can be created: Set(dictionary.values.map{$0.manager})

Oleksandr Matrosov Over a year ago

cannot invoke initializer Set<>

|

JAL · Accepted Answer · 2016-03-18 14:54:23Z

-1

class Factory{

    var manager:String = ""

}

var myFactoryDict = ["key1":Factory(),"key2":Factory(),"key3":Factory()]

myFactoryDict.values.map { (factoryObj:Factory) -> String in

    return factoryObj.manager
}

edited Mar 18, 2016 at 14:54

JAL

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answered Mar 18, 2016 at 14:25

Harvindar

1

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