Filter Array of [AnyObject] in Swift

Question

I have an array of AnyObject objects in Swift. Each object has attributes of a restaurant, such as name, type, loc, etc. How can I filter the array if I want to

Answer 1

Your array, objects, is an array of PFObject objects. Thus, to filter the array, you might do something like:

let filteredArray = objects.filter() {
    if let type = ($0 as PFObject)["Type"] as String {
        return type.rangeOfString("Sushi") != nil
    } else {
        return false
    }
}

---

My original answer, based upon an assumption that we were dealing with custom Restaurant objects, is below:

---

You can use the filter method.

Let's assume Restaurant was defined as follows:

class Restaurant {
    var city: String
    var name: String
    var country: String
    var type: [String]!

    init (city: String, name: String, country: String, type: [String]!) {
        ...
    }
}

So, assuming that type is an array of strings, you'd do something like:

let filteredArray = objects.filter() {contains(($0 as Restaurant).type, "Sushi")}

If your array of types could be nil, you'd do a conditional unwrapping of it:

let filteredArray = objects.filter() {
    if let type = ($0 as Restaurant).type as [String]! {
        return contains(type, "Sushi")
    } else {
        return false
    }
}

The particulars will vary a little depending upon your declaration of Restaurant, which you haven't shared with us, but hopefully this illustrates the idea.