Overload == operator

ContentView.swift

typealias Predicate<Element> = (Element) -> Bool

func ==<Element>(lhs: KeyPath<Element, String>, rhs: String) -> Predicate<Element> { // overload ==
    return { element in
        guard !rhs.isEmpty else { return true } // make sure not empty
        return search(
            needle: rhs.lowercased(), // search
            haystack: element[keyPath: lhs].lowercased() // value for keypath
        )
    }
}

// ...
List(
    friends
    .filter(\.name == searchText) // 💯
    .prefix(30) 
)
// ...