Instance SubscriptSwift

subscript(_:)

Accesses the element at the specified position.

subscript(index: Int) -> Element { get set }

Parameters

index

The position of the element to access. index must be greater than or equal to startIndex and less than endIndex.

Overview

The following example uses indexed subscripting to update an array’s second element. After assigning the new value ("Butler") at a specific position, that value is immediately available at that same position.

var streets = ["Adams", "Bryant", "Channing", "Douglas", "Evarts"]
streets[1] = "Butler"
print(streets[1])
// Prints "Butler"