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iOS

Vladimir Ulyanov
Vladimir Ulyanov
14,023 Points

Unsure as to how the second way of specifying type works.

At 8:00 Pasan shows us a new way to specify the type that the results constant will accept.

I understand how the below works:

var results: [Point] = []

It looks like the result is the same, but I'm not exactly sure why the code below does the same thing:

var results = [Point]()

Can anyone clarify for me, or point me to the right place in the Swift documentation?

Jialong Zhang
Jialong Zhang
9,821 Points

I think just two different ways to write the code. Similar to counter += 1 or counter = counter + 1

1 Answer

Vladimir Ulyanov
Vladimir Ulyanov
14,023 Points

Whilst doing something unrelated I was reviewing the documentation for String and came upon a new way to create an empty string:

let emptyString = String()

I guess this is just a standard way to create an empty type of any kind!

I was confused at first but I see how it works now I've seen examples of different types using this syntax.