rahulsingh1101

extension Dictionary {
    var prettyPrintedJSON: String? {
        do {
            let data: Data = try JSONSerialization.data(withJSONObject: self, options: .prettyPrinted)
            return String(data: data, encoding: .utf8)
        } catch _ {
            return nil
        }
    }
    

rahulsingh1101

extension Data {
    func toString() -> String? {
        let str = String(data: self, encoding: .utf8)
        return str
    }
    
    func toDictionary() -> [String: Any]? {
        do {
            return try JSONSerialization.jsonObject(with: self, options: []) as? [String: Any]
        } catch {

rahulsingh1101

1. In capabilities need to turn on the iCloud and tick the iCloud Documnet in services. Choose the container and note 
down its name. (because while setting up settings inside info.plist we. need to set the NSUbiquitousContainers key value
same as this name).

2. We need to define the iCloud Drive Container that we are going to use inside info.plist

<key>NSUbiquitousContainers</key>
<dict>
    <key>this has to be same as selected containers name inside entitlement</key>
    <dict>

rahulsingh1101

To Do CRUD operation in Core Data, we need to do the following things:

1. Get reference of NSPersistentContainer.
eg. lazy var persistentContainer: NSPersistentContainer (inside Appdelegate)

2. Get context from persistentContainer
eg. let context = persistentContainer.viewContext (inside Appdelegate)
    let context = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext (inside ViewController)

3. Call fetch, save and delete over this context

rahulsingh1101

extension UIView {
    func addAutolayoutSubview(_ view: UIView){
        view.translatesAutoresizingMaskIntoConstraints = false
        addSubview(view)
    }
    
    func apply<T:UIView>(_ view: T, completion:((T))->Void){
        completion(view)
    }
}

rahulsingh1101

class RelatedItemsTableView: UITableView, UITableViewDelegate, UITableViewDataSource {
    var items = [Items]() {
        didSet{
            self.reloadData()
        }
    }
    
    var headerTitles = [String]() {
        didSet {
            self.reloadSections(IndexSet.init(arrayLiteral: 0), with: .automatic)