Create an array in swift

Question

I'm searching really much, but maybe I can't understand the results.

I found only that a array in SWIFT have as index int-values

var myArray = [String]()

myArray.append("bla")
myArray.append("blub")

println(myArray[0]) // -> print the result   bla

But I will add a String with an String as index-key

var myArray = [String:String]()

myArray.append("Comment1":"bla")
myArray.append("Comment2":"blub")

println(myArray["Comment1"]) // -> should print the result bla

How should i declare the array and how I can append a value then to this array?

Did you read the chapter "Collection Types" in The Swift Programming Language ? — Martin R
– Martin R, Commented Mar 19, 2015 at 10:31

IxPaka · Accepted Answer · 2015-03-19 10:27:27Z

2

Your second example is dictionary

myArray["key"] = "value"

If you want array of dictionaries you would have to declare it like this

var myArray: [[String: String]]

answered Mar 19, 2015 at 10:27

IxPaka

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Fogmeister · Accepted Answer · 2015-03-19 10:25:52Z

1

Your first example is an array. Your second example is a dictionary.

For a dictionary you use key value pairing...

myArray["Comment1"] = "Blah"

You use the same to fetch values...

let value = myArray["Comment1"]
println(value)

answered Mar 19, 2015 at 10:25

Fogmeister

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2 Comments

user2632918 Over a year ago

Aha, thats the difference. Thank you for this information

Fogmeister Over a year ago

No worries. Of course, I'd maybe call it something else. Using the name "Array" for a dictionary could be confusing :-)

Bug Hunter Zoro · Accepted Answer · 2015-03-19 11:06:45Z

0

You got the concept of array in the first example but for the second one you need a dictionary as they operate on key value pair

// the first String denotes the key while the other denotes the value
var myDictionary :[String:String] = ["username":"NSDumb"]
let value = myDictionary["username"]!;
println(value)

Quick reference for dictionaries collection type can be found here

answered Mar 19, 2015 at 11:06

Bug Hunter Zoro

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