emarashliev

import Foundation

// Build a HashMap like data structure with next methods
//   put(key: K, value: V) 
//   get(key: K) -> V? 
//   getRandom() -> (K, V)?
//   all of them with average O(1) time complexity.

class HashMap<K, V> where K: Hashable {
    private var store = Dictionary<K, V>()

emarashliev

#!/usr/bin/swift sh
import Foundation
import XcodeProj  // @tuist
import PathKit

/// INSTRUCTIONS 
/// install swift-sh on your mac, more info here 👉 https://github.com/mxcl/swift-sh
/// make this file executable $ chmod u+x AddBuildPhase.swift
/// then just run the file  $ ./AddBuildPhase.swift

emarashliev

@propertyWrapper
public struct Field<Value: DatabaseValue> {
  public let name: String
  private var record: DatabaseRecord?
  private var cachedValue: Value?
  
  public init(name: String) {
    self.name = name
  }

emarashliev

struct FailableDecodable<Base: Decodable>: Decodable {
    var base: Base?

    init(from decoder: Decoder) throws {
        let container = try decoder.singleValueContainer()
        do {
            base = try container.decode(Base.self)
        } catch let error {
            print(error)
        }

emarashliev

var array: [EventLoopFuture<T?>] = []
// do whatever to add futures to this array

EventLoopFuture<[T]>.reduce(into: [], array, on: eventLoop) {
    if let value = $1 {
        $0.append(value)
    }
}

emarashliev

import NStack
import Vapor
import Sugar

protocol Translatable {
    var translationKey: String { get }
}

extension AuthenticationError: Translatable {
    var translationKey: String {

emarashliev

Run an image in a new container daemonized

$ sudo docker run -d <image_name>

Run an image in interactive mode with the command /bin/bash

$ sudo docker run -i -t <image_name> /bin/bash

emarashliev

// The Model
final class User<D>: Model where D: Database & QuerySupporting  {
    typealias Database = D
    typealias ID = Int

    static var idKey: IDKey { return \.id }

    var id: Int?
    var name: String
    var email: String

emarashliev

// The Model
final class User: Model  {
    typealias Database = MySQLDatabase /// the problem is this line
    typealias ID = Int

    static var idKey: IDKey { return \.id }

    var id: Int?
    var name: String
    var email: String

emarashliev

let begin = clock()
// DO SOMETHING
let diff = Double(clock() - begin) / Double(CLOCKS_PER_SEC)
print("Execution time:  \(diff)")