someAnd, noneOr

OptionalExt.swift

extension Optional {
    func someAnd(_ closure: (Wrapped) -> Bool) -> Bool {
        if case .some(let v) = self, closure(v) == true { return true }
        return false
    }

    func noneOr(_ closure: (Wrapped) -> Bool) -> Bool {
        switch self {
        case .some(let v):
            return closure(v)
        case .none:
            return true
        }
    }
}

let a: String? = "foo"
let b: String? = nil

a.someAnd({ $0 == "bar" })
b.noneOr({ $0 == "cat" })

b != nil ? b! == "foo" : false