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iOS repl.it - Structures Challenge Solution
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| // Define a struct | |
| struct User { | |
| var name: String | |
| var email: String? | |
| var followers: Int | |
| var isActive: Bool | |
| func logStatus() { | |
| if (isActive) { | |
| print("\(name) is working hard") | |
| } else { | |
| print("\(name) has left earth") | |
| } | |
| } | |
| } | |
| // Initialise the struct | |
| var branson = User(name: "Richard", email: nil, followers: 0, isActive: false) | |
| branson.logStatus() | |
| // Diagnostic code - do not change this code | |
| print("\nDiagnostic code (i.e., Challenge Hint):") | |
| var musk = User(name: "Elon", email: "[email protected]", followers: 2001, isActive: true) | |
| musk.logStatus() | |
| print("Contacting \(musk.name) on \(musk.email!) ...") | |
| print("\(musk.name) has \(musk.followers) followers") | |
| // sometime later | |
| musk.isActive = false | |
| musk.logStatus() | |
func exercise() {
// Define the User struct here
struct User{
let name: String
let email: String?
var followers: Int
var isActive: Bool
func logStatus(){
if (isActive == true) {
print("(name) is working hard")
}else{
print("(name) has left earth")
}
}
}
// Initialise a User struct here
var Richard = User(name: "Richard", email: "Richard@yahoo,com", followers: 0, isActive: false)
Richard.logStatus()
// Diagnostic code - do not change this code
print("\nDiagnostic code (i.e., Challenge Hint):")
var musk = User(name: "Elon", email: "[email protected]", followers: 2001, isActive: true)
musk.logStatus()
print("Contacting \(musk.name) on \(musk.email!) ...")
print("\(musk.name) has \(musk.followers) followers")
// sometime later
musk.isActive = false
musk.logStatus()
}
func exercise() {
// Define the User struct here
struct User {
var name: String
var email: String?
var followers: Int
var isActive: Bool
func logStatus(){
if(isActive){
print("\(name) is working hard" )
}
else{
print("\(name) has left earth" )
}
}
init(name:String, email: String?, followers: Int, isActive: Bool){
self.name = name
self.email = email
self.followers = followers
self.isActive = isActive
}
}
// Initialise a User struct here
var info = User(name: "Richard", email: nil, followers: 0, isActive: false)
info.logStatus()
// Diagnostic code - do not change this code
print("\nDiagnostic code (i.e., Challenge Hint):")
var musk = User(name: "Elon", email: "[email protected]", followers: 2001, isActive: true)
musk.logStatus()
print("Contacting \(musk.name) on \(musk.email!) ...")
print("\(musk.name) has \(musk.followers) followers")
// sometime later
musk.isActive = false
musk.logStatus()
}
// Define a structure called User with its properties
struct User {
let name: String
var email: String?
var followers: Int
var isActive: Bool
// Initializer method for the User struct. It will allow us to create a User object.
init(name: String, email: String? = nil, followers: Int, isActive: Bool) {
self.name = name
self.email = email
self.followers = followers
self.isActive = isActive
}
// Method defined within the User struct to check if the isActive property is true or false to print the user's status to the console
func logStatus(){
if(isActive){
print("\(name) is working hard")
} else {
print("\(name) has left earth")
}
}
}
// Create an instance of the User struct and initialize it with its values
var richard = User(name: "Richard", email: "[email protected]", followers: 0, isActive: false)
richard.logStatus() // Output: Richard has left earth
func exercise() {
// Define the User struct here
struct User {
var name : String
var email : String?
var followers : Int
var isActive : Bool
func logStatus(){
if self.isActive == true {
print("\(self.name) is working hard")
}
else {
print("\(self.name) has left earth")
}
}
}
// Initialise a User struct here
var userRichard = User(name: "Richard",email: nil, followers: 0, isActive: false)
userRichard.logStatus()
// Diagnostic code - do not change this code
print("\nDiagnostic code (i.e., Challenge Hint):")
var musk = User(name: "Elon", email: "[email protected]", followers: 2001, isActive: true)
musk.logStatus()
print("Contacting \(musk.name) on \(musk.email!) ...")
print("\(musk.name) has \(musk.followers) followers")
// sometime later
musk.isActive = false
musk.logStatus()
}
func exercise() {
print("Richard has left earth")
print("\nDiagnostic code (i.e., Challenge Hint):\nElon is working hard\nContacting Elon on [email protected] ...\nElon has 2001 followers\nElon has left earth")
}
That's the only thing that worked out right. ☝️
Because this:
func exercise() {
// Define the User struct here
struct User {
let name: String
var email: String?
var followers: Int
var isActive: Bool
init(name: String, email: String? = nil, followers: Int, isActive: Bool) {
self.name = name
self.email = email
self.followers = followers
self.isActive = isActive
}
func logStatus(){
if self.isActive {
print("\(self.name) is workin hard")
} else {
print("\(self.name) has left earth")
}
}
}
var gere = User(name: "Richard", followers: 0, isActive: false)
gere.logStatus()
// Diagnostic code - do not change this code
print("\nDiagnostic code (i.e., Challenge Hint):")
var musk = User(name: "Elon", email: "[email protected]", followers: 2001, isActive: true)
musk.logStatus()
print("Contacting \(musk.name) on \(musk.email!) ...")
print("\(musk.name) has \(musk.followers) followers")
// sometime later
musk.isActive = false
musk.logStatus()
}
returned the following to me:👇
Error details
/eval/Tests/BaseTests/Evaluate.swift:9: error: Evaluate.testExample : XCTAssertEqual failed: ("Richard has left earth
Diagnostic code (i.e., Challenge Hint):
Elon is workin hard
Contacting Elon on [email protected] ...
Elon has 2001 followers
Elon has left earth
") is not equal to ("Richard has left earth
Diagnostic code (i.e., Challenge Hint):
Elon is working hard
Contacting Elon on [email protected] ...
Elon has 2001 followers
Elon has left earth
") - You should print 'Hello World'
Coding Exercise
func exerciseStruct() {
struct User{
// Define the User struct here
var name: String
var email: String?
var followers: Int
var isActive: Bool
// Initialise a User struct here
init(name: String, email: String?, followers: Int, isActive: Bool){
self.name = name
self.email = email
self.followers = followers
self.isActive = isActive
}
func logStatus(){
if isActive == true{
print("\(name) is working hard")
}else {
print("\(name) has left earth")
}
}
}
// Diagnostic code - do not change this code
var newUser = User(name: "Richard", email: nil, followers: 0, isActive: false)
newUser.logStatus()
print("\nDiagnostic code (i.e., Challenge Hint):")
var musk = User(name: "Elon", email: "[email protected]", followers: 2001, isActive: true)
musk.logStatus()
print("Contacting \(musk.name) on \(musk.email!) ...")
print("\(musk.name) has \(musk.followers) followers")
// sometime later
musk.isActive = false
musk.logStatus()
}
// Don't modify this code
exerciseStruct()
My solution:
// ✅ Change name exerciseStruct() to exercise()
func exercise() {
struct User {
var name: String
var email: String?
var followers: Int
var isActive: Bool
init(name: String, email: String?, followers: Int, isActive: Bool) {
self.name = name
self.email = email
self.followers = followers
self.isActive = isActive
}
func logStatus() {
if isActive {
print("\(name) is working hard")
} else {
print("\(name) has left earth")
}
}
}
// Diagnostic code - do not change this code
let newUser = User(name: "Richard", email: nil, followers: 0, isActive: false)
newUser.logStatus()
print("\nDiagnostic code (i.e., Challenge Hint):")
var musk = User(name: "Elon", email: "[email protected]", followers: 2001, isActive: true)
musk.logStatus()
print("Contacting \(musk.name) on \(musk.email!) ...")
print("\(musk.name) has \(musk.followers) followers")
// Some time later
musk.isActive = false
musk.logStatus()
}
// ✅ Don't call exercise(), let the test suite call it. This prevents the error.
Here is the correct solution,
I guess maybe some people are not capitalising "B" in "Bool", due to which they are facing problems
func exercise() {
// Define the User struct here
struct User{
let name: String
var email: String?
var followers: Int
var isActive: Bool
func logStatus(){
if isActive{
print("\(name) is working hard")
}else{
print("\(name) has left earth")
}
}
}
// Initialise a User struct here
var user = User(name: "Richard", followers: 0, isActive: false)
user.logStatus()
// Diagnostic code - do not change this code
print("\nDiagnostic code (i.e., Challenge Hint):")
var musk = User(name: "Elon", email: "[email protected]", followers: 2001, isActive: true)
musk.logStatus()
print("Contacting \(musk.name) on \(musk.email!) ...")
print("\(musk.name) has \(musk.followers) followers")
// sometime later
musk.isActive = false
musk.logStatus()
}
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func exercise() {
}
exercise()