19 lines
388 B
Swift
19 lines
388 B
Swift
//
|
|
// Collection+safe.swift
|
|
// mrousavy
|
|
//
|
|
// Created by Marc Rousavy on 10.01.21.
|
|
// Copyright © 2021 mrousavy. All rights reserved.
|
|
//
|
|
|
|
import Foundation
|
|
|
|
extension Collection {
|
|
/**
|
|
Returns the element at the specified index if it is within bounds, otherwise nil.
|
|
*/
|
|
subscript(safe index: Index) -> Element? {
|
|
return indices.contains(index) ? self[index] : nil
|
|
}
|
|
}
|