converts string to little endian in swift

string2utf16le.swif

import Foundation
let str = "✑🍍🍎✒"
// returns little endian
let data = str.withCString(encodedAs: UTF16.self) { (lead) -> Data in
    let ret = UnsafeBufferPointer(start: lead, count: str.utf16.count)
    let data = Data(buffer: ret)
    return data
}

let decode = String(data: data, encoding: .utf16LittleEndian)!
print(decode)