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func getWindowsList() {
    let options = CGWindowListOption(arrayLiteral: .optionOnScreenOnly)
    let windowListInfo = CGWindowListCopyWindowInfo(options, CGWindowID(1))
    let infoList = windowListInfo as! [[String: Any]]

    let windowList = infoList.filter { (($0["kCGWindowLayer"] as? Int) ?? -1) == 0 }

    for window in windowList {
        print(window["kCGWindowOwnerName"])
    }

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import UIKit
import Foundation

let image = UIImage(named: "example.jpg")
let imageData = image!.jpegData(compressionQuality: 0.75)
let date = Date()
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd"
let dateString = dateFormatter.string(from: date)

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//
//  FocusView.swift
//  CustomNavigation
//
//  Creating a CustomFocusView
//  This code shows how to implement a custom view that can be focused in tvOS
//  Just set this class as an UIView's custom class
//

import UIKit

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#include <string>
#include <iostream>

//
//Left trim
//
std::string trim_left(const std::string& str)
{
  const std::string pattern = " \f\n\r\t\v";
  return str.substr(str.find_first_not_of(pattern));

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extension URLRequest {
    
    public func curl(pretty:Bool = false) -> String {
        
        var data : String = ""
        let complement = pretty ? "\\\n" : ""
        let method = "-X \(self.httpMethod ?? "GET") \(complement)"
        let url = "\"" + self.url?.absoluteString ?? "" + "\""
        
        var header = ""

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enum SignalTrap {
    
    typealias SignalHandler = @convention(c)(Int32) -> Void
    
    static func handle(signal:Int32, action: @escaping SignalHandler) {
        typealias SignalAction = sigaction
        
        var sigAction = sigaction()
        sigAction.__sigaction_u = unsafeBitCast(action, to: __sigaction_u.self)
        sigaction(signal, &sigAction, nil)

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//
//  StringMaskFormatter.swift
//  StringMaskFormatter
//
//  Created by dede.exe on 10/07/16.
//  It's totally base on article : "http://vojtastavik.com/2015/03/29/real-time-formatting-in-uitextfield-swift-basics/"
//  And I don't mind if the original author should allow me(or not) to publish it :)... But I'll keep the reference
//

import UIKit

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import Darwin

let handle = dlopen("/usr/lib/libc.dylib", RTLD_NOW)
let sym = dlsym(handle, "random")
let functionPointer = UnsafeMutablePointer<() -> CLong>(sym)
let result = functionPointer.memory()

println(result)

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// No Security

{
  "rules": {
    ".read": true,
    ".write": true
  }
}

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//
//  UITextField+MaskPattern.swift
//  MaskedTextField
//
//  Created by dede.exe on 10/07/16.
//
//  It's totally base on article : "http://vojtastavik.com/2015/03/29/real-time-formatting-in-uitextfield-swift-basics/"
//  And I don't mind if the original author allow me to publish it :)... But I'll keep the reference
//  I modified the original implementation to keep it as an Extension...
//