Function that merges two lists, but removing duplicate ones. Swift implementation.

gistfile1.swift

import UIKit

var namesA = ["Luis", "Hector", "Selena", "Emmanuel", "Amish", "Rawle", "Selena"]
var namesB = ["Luis", "Selena", "Amish", "Rawle", "George", "Heberti"]
var filter = [String]()

for item in namesA+namesB {
    if !contains(filter, item) {
        filter.append(item)
    }
}

print(filter)
// Returns ["Luis", "Hector", "Selena", "Emmanuel", "Amish", "Rawle", "George", "Heberti"]