swift append element to array
//To add a new element to the end of an Array.
anArray.append("This String")
//To append a different Array to the end of your Array.
anArray += ["Moar", "Strings"]
anArray.append(contentsOf: ["Moar", "Strings"])
// To insert a new element into your Array.
anArray.insert("This String", at: 0)
// To insert the contents of a different Array into your Array.
anArray.insert(contentsOf: ["Moar", "Strings"], at: 0)