array

import Foundation

var mypet = ["Dog", "Cat", "Cow"]

for i in 0...2{
    print(mypet[i])
}

mypet += ["goat", "sheep"]
mypet.append("horse")
print(mypet)

mypet.remove(at:3)     //index to remove
print(mypet)

mypet[0] = "Lion"

print(mypet.count)  // number of elements


var ara = [Int]()   //declaring an empty array
ara.append(55)
ara += [70, 80, 90, 100]
print(ara)