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iOS Swift 2.0 Collections and Control Flow Dictionaries Modifying a Dictionary

Vera Hsu
Vera Hsu
997 Points
Posted by Vera Hsu
Vera Hsu
997 Points

How to declare an empty array? (sometimes we are not sure what the content will be)

I learned C language before. Sometimes we have to declare an empty array, like : int todo[3]; I'm wondering how to do this in Swift

1 Answer

Steven Deutsch
Steven Deutsch
21,046 Points
Steven Deutsch
Steven Deutsch
21,046 Points

Hey Vera Hsu,

Here's the syntax of creating an array in Swift:

// Create an empty array of Int values
var arrayOfInts: [Int] = []

// Creating an array literal
    // You don't need to explicitly declare the type, Swift can infer it from the values
var arrayOfInts = [1, 2, 3]

// Creating an empty array of Int values using an initializer
var arrayOfInts = [Int]()

Good Luck!