[SOLVED] Split String with varied amount of input data

Split String with varied amount of input data

I have a string that looks like this:

https://product/000000/product-name-type-color

I used a split to separate this strings, but Im having problems because the link can come without the description or the id

guard let separateLink = deeplink?.split(separator: "/") else { return }

let linkWithoutProductDetails = "\(separateLink[0] ?? "")//\(separateLink[1] ?? "")/\(separateLink[2] ?? "")"

When the link comes only https://product/ Im getting Fatal error: Index out of range even using the Optionals and String Interpolation, how can i guarantee that independently of the quantity of informations in my link the code wont break

Solution

You should check the number of path components. However, ideally you should use the URL functions instead of manipulating the link as a String:

if var url = URL(string: "https://product/000000/product-name-type-color") {
    let pathComponents = url.pathComponents

    // "product" is not a path component, it's the host.
    // Path components are "/", "000000" and "product-name-type-color"
    if pathComponents.count > 2 {
        url = url.deletingLastPathComponent()
    }

    print(url)
}