Dictionaries - RaduG/swift_learning GitHub Wiki

Declaration

var dict = [String: Int]() // String keys, Int values

Setting elements

dict["key"] = value

Removing elements

dict["key"] = nil

Length

dict.count

Iteration

Over k, v pairs:

for (key, value) in dict {
    //
}

Over keys:

for key in dict.keys {
    //
}

Over values:

for value in dict.values {
    //
}