//map
let names1 = ["Ram","sonu","lucky"]
print(names1.map({$0}))

//compactMap
let names2 = ["Ram","sonu","lucky",nil]
print(names2.compactMap({$0}))

//Flatmap
let multinames = [["ram","luck"],["sonu","chotu","chinnu"]]
print(multinames.flatMap{$0})

//sortedby
let names3 = ["ram","lucky","sonu"]
print(names3.sorted(by: <))

//filter
let names4 = ["Ram","lucky","sonu"]
print(names4.filter{$0<"sonu"})

//Reduce
let names5 = ["Ram","sonu","lucky"]
print(names5.reduce(" " ,+ ))