maniyarpayal

extension String.StringInterpolation {
    mutating func appendInterpolation(_ values: [String], empty defaultValue: @autoclosure () -> String) {
        if values.count == 0 {
            appendLiteral(defaultValue())
        } else {
            appendLiteral(values.joined(separator: ", "))
        }
    }
}
func EmptyMsg () -> String {

maniyarpayal

extension String.StringInterpolation {
    mutating func appendInterpolation(repeat str: String, _ count: Int) {
        for _ in 0 ..< count {
            appendLiteral(str)
        }
    }
}

print("\(repeat: "Do what you like\n ", 6)")

maniyarpayal

import Foundation

extension String.StringInterpolation {
    mutating func appendInterpolation(_ number: Int, style: NumberFormatter.Style) {
        let formatter = NumberFormatter()
        formatter.numberStyle = style
       

        if let result = formatter.string(from: number as NSNumber) {
            appendLiteral(result)

maniyarpayal

class User {
    
    var firstName: String
    var lastName: String
    init (firstName: String,lastName: String){
        self.firstName = firstName
        self.lastName = lastName
    }
}
//StringInterpolation 1

maniyarpayal

class Point {
    let x: Int, y: Int
    init( x: Int, y: Int){
        self.x = x
        self.y = y
    }
}

let p = Point(x: 21, y: 30)
print(p)

maniyarpayal

class Point {
    let x: Int, y: Int
    init( x: Int, y: Int){
        self.x = x
        self.y = y
    }
}

let p = Point(x: 21, y: 30)
print(p)

maniyarpayal

struct AppUser{
    var firstName: String
    var lastName: String
}

let appUser = AppUser(firstName : "Payal",  lastName : "Maniyar")
print("User details: \(appUser)")


Output :

maniyarpayal

//: Playground - noun: a place where people can play

import UIKit
import UserNotifications

var str = "Hello, playground"
var calendar = Calendar.current
calendar.timeZone = TimeZone.current
var dateFormat = DateFormatter()
dateFormat.dateFormat = "dd MMM yyyy"

maniyarpayal

//
//  MessageFilterExtension.swift
//  SMS Filter Demo
//
//  Created by Dhanashree Inc on 11/05/18.
//  Copyright © 2018 Dhanashree Inc. All rights reserved.
//

import IdentityLookup

maniyarpayal

//: Playground - noun: a place where people can play

import UIKit
struct Photo: Codable
{
    //String, URL, Bool and Date conform to Codable.
    var title: String
    var url: URL
    var isSample: Bool