WTF are Protocols ?

Protocols.swift

protocol lifeOfABear {
    var fishEatenToday: Int {get}
    func eatFish()
    func eatHoney()
    func ClimbTree()
    func sleep()

}

    // now all you have to do is make sure you have variable and functions implemented

class PhilTheBear: lifeOfABear {
    
    var fishEatenToday: Int = 200;
    
    func eatFish() {
        print("Go down to the east river today")
    }
    
    func eatHoney() {
        print("Walk over to the bee hive near the old tree")
    }
    
    func ClimbTree() {
        print("climb up the first tree that has a blue jay")
    }
    
    func sleep() {
        print("get a sold 12 hours")
    }
    
    
}