Equatable for Any

AnyEquatable.swift

extension Equatable {
    public static func isEqual(_ l: Any, _ r: Any) -> Bool {
        (l as? Self).map { isEqual($0, r) } ?? false
    }
    public static func isEqual(_ l: Self, _ r: Any) -> Bool {
        isEqual(r, l)
    }
    public static func isEqual(_ l: Any, _ r: Self) -> Bool {
        (l as? Self).map{ $0 == r } ?? false
    }
}

extension Collection where Element == AnyHashable {
    public static func are(equal first: Element, _ rest: Element...) -> Bool {
        rest.allSatisfy { $0 == first }
    }
}

AnyHashable.isEqual([1], [1]) // true
AnyHashable.isEqual([1], 1) // false
AnyHashable.isEqual("test", 1) // false
AnyHashable.isEqual("test", "test") // true

import Foundation

[AnyHashable].are(equal: 1, 2, 3) // false
[AnyHashable].are(equal: 1, 1, NSNumber(1)) // true