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  • How to declare an Array in Swift

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    Hi Readers!

    There are different ways to declare Array in Swift. I will write few examples below:

    Example 1:

    let a : Array? = ["hello","hi"]

    Now in above example this is a constant array. You cannot add/append an element in it.

    Example 2: Below both versions of declaring array are same

    var a2 = Array<String>()
    var a3 = [String]()

    Example 3: This will declare an NSArray. Here you cannot add an element. And this array contains NSObjects.

    var a3 = ["hello",12]

    Example 4: This will declare a NSMutableArray. You can add elements in it similar to Objective c

     var a3 = [] as NSMutableArray

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