Learn, how to get the first element of a given array in Swift.
Consider, we have a following
var prices = [34, 23, 12, 44, 52]
To access the first element (
34) from an above array, we can use the subscript syntax
[ ] by passing its index.
var prices = [34, 23, 12, 44, 52] let firstElement = prices print(firstElement) // 34
Note: In Swift arrays are zero-indexed, so the first element index is 0 .
Similarly, we can also use the
first instance property like this.
var prices = [34, 23, 12, 44, 52] let firstElement = prices.first ?? 0 print(firstElement) // 34
The question marks
?? in the above code returns
0 if the
prices array is empty or nil; otherwise it returns the first element in an array.