trilliwon · September 22, 2018 10:03
diff --git a/swift-counter.swift b/swift-counter.swift
 extension Array where Element: Hashable {

    func counter() -> [Element: Int] {
        return self.reduce(into: [:]) { counts, elem in counts[elem, default: 0] += 1 }
    }
 }
	extension Array where Element: Hashable {

	func counter() -> [Element: Int] {
	return self.reduce(into: [:]) { counts, elem in counts[elem, default: 0] += 1 }
	}
	}