gaeng2y

extension Publisher {
    func coolDown<S: Scheduler>(for cooltime: S.SchedulerTimeType.Stride,
                                scheduler: S) -> some Publisher<Self.Output, Self.Failure> {
        return self.receive(on: scheduler)
            .scan((S.SchedulerTimeType?.none, Self.Output?.none)) {
                let eventTime = scheduler.now
                let minimumTolerance = scheduler.minimumTolerance
                guard let lastSentTime = $0.0 else {
                    return (eventTime, $1)
                }

gaeng2y

// You have a very very large video file you need to upload to a server while your app is backgrounded.
// Solve by using URLSession background functionality. I will here use Alamofire to enable multipart upload.

class Networking {
  static let sharedInstance = Networking()
  public var sessionManager: Alamofire.SessionManager // most of your web service clients will call through sessionManager
  public var backgroundSessionManager: Alamofire.SessionManager // your web services you intend to keep running when the system backgrounds your app will use this
  private init() {
    self.sessionManager = Alamofire.SessionManager(configuration: URLSessionConfiguration.default)
    self.backgroundSessionManager = Alamofire.SessionManager(configuration: URLSessionConfiguration.background(withIdentifier: "com.lava.app.backgroundtransfer"))

gaeng2y

HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Accept: HSmrc0sMlYUkAGmm5OPpG2HaGWk=
Sec-WebSocket-Protocol: chat

gaeng2y

HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Accept: HSmrc0sMlYUkAGmm5OPpG2HaGWk=
Sec-WebSocket-Protocol

gaeng2y

GET /chat HTTP/1.1
Host: server.example.com
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Key: x3JJHMbDL1EzLkh9GBhXDw==
Sec-WebSocket-Protocol: chat, superchat
Sec-WebSocket-Version: 13
Origin: http://example.com

gaeng2y

GET /chat HTTP/1.1
Host: server.example.com
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Key: x3JJHMbDL1EzLkh9GBhXDw==
Sec-WebSocket-Protocol: chat, superchat
Sec-WebSocket-Version: 13
Origin: http://example.com

gaeng2y

public enum EdgeType {
  case directed
  case undirected
}

public protocol Graph {
  
  associatedtype Element
  
  func createVertex(data: Element) -> Vertex<Element>

gaeng2y

#!/bin/bash

# move project dir
PROJECT_HOME=`pwd`
echo "cd $PROJECT_HOME" > /tmp/tmp.sh

# search .xcodeproj file and strip filename
PROJECT_NAME=""
for f in *.xcodeproj; do
    PROJECT_NAME="${f%.*}"

gaeng2y

#!/bin/bash

# move project dir
PROJECT_HOME=`pwd`
echo "cd $PROJECT_HOME" > /tmp/tmp.sh

# pod init & update
echo "pod update" >> /tmp/tmp.sh

chmod +x /tmp/tmp.sh

gaeng2y

print("start")
DispatchQueue.main.async {
    for _ in 0...4 {
        print("async")
    }
}
for _ in 0...4 {
    print("sync")
}
print("end")