adregan

{"count": 20, "fitness_disciplines": [{"id": "walking", "name": "Walking"}, {"id": "strength", "name": "Strength"}, {"id": "cycling", "name": "Cycling"}, {"id": "stretching", "name": "Stretching"}, {"id": "running", "name": "Running"}, {"id": "beyond_the_ride", "name": "Floor"}, {"id": "circuit", "name": "Bootcamp"}, {"id": "yoga", "name": "Yoga"}, {"id": "meditation", "name": "Meditation"}, {"id": "cardio", "name": "Cardio"}], "rides": [{"scheduled_start_time": 1565883000, "rating": 0, "difficulty_rating_avg": 0.0, "equipment_tags": [], "difficulty_rating_count": 0, "captions": [], "title": "30 min Power Zone Ride", "is_explicit": false, "live_stream_id": "e571d20a9efc4e34a75a8bb3924acfd7-live", "origin_locale": "en-US", "difficulty_estimate": null, "content_format": "video", "location": "nyc", "original_air_time": 1565882340, "has_closed_captions": false, "pedaling_duration": 1800, "sample_vod_stream_url": null, "extra_images": [], "series_id": "9fde039566054ea499130bed1c289eb3", "studio_peloton_id": "7812b

mildocjr

public class myClass {
  
}
// the public keyword defines the access control for this class

mildocjr

if let actualInteger = possibleInteger,
   let actualDouble = actualInteger as? Double {
       // do stuff with actualInteger
       // or actualDouble
}

mildocjr

if let acutualInteger = possibleInteger,
   var actualString = possibleString {
       // do stuff
}

mildocjr

func add(firstPossibleInteger: Int?, secondPossibleInteger: Int?) -> Int? {
    guard let firstNumber = firstPossibleInteger, 
          let secondNumber = secondPossibleNumber
          else { return nil }    // or 0 if you want to return a
                                 // non-optional value
  
    return (firstNumber + secondNumber)
}

mildocjr

if let actualDouble = possibleDouble {
    // do stuff with actualDouble
}

mildocjr

if let actualInteger = possibleInteger as? Int {
    // do stuff with actual integer
    print(actualInteger)    // prints 3
    print(possibleInteger)  // prints Optional(3)
    // actualInteger's scope ends here
}

mildocjr

class CustomTableViewCell: UITableViewCell {
   @IBOutlet weak var imageView: UIImageView!
   @IBOutlet weak var title: UILabel!
   @IBOutlet weak var subtitle: UILabel!
}

class TableView: UITableView {
    func tableView(_ tableView: UITableView,
         cellForRowAt indexPath: IndexPath) -> UITableViewCell {
          let cell = tableView.dequeueReusableCell(with: identifier)

mildocjr

var integerValue = 42
var stringValue = String(describing: 42)

var doubleValue = integerValue as! Double
var floatValue = Int(stringValue) as? Float

var array: [String] = ["eggs", "bacon", "ham", "cheese"]
let arrayCount = Double(array.count as? String)

var numArray: [Int] = [1, 2, 3, 4, 5]

mildocjr

var integerValue = 42
var stringValue = integerValue as? String