Gabbrolee/dayTwo.swift

## dayTwo.swift
import UIKit

//MARKS:- DICTIONARIES This is can be compare with an array in the sense that, it uses keys to address position of element in a collection but array uses index to access the position of element in a collection
var person = ["first":"Kemi", "second":"Bola", "last":"Temi", "month":"December", "website":"www.google.com"]
person["first"]                // output: Kemi
person["month"]               // output:  December

//MARkS:- from the output above the key is first and the value is Kemi
// dictionaries use keys and values unlike array that use index to search
// for position of items in a collection
// ["key": "value" ] which can be in the form of  [string: string], [Int: string]

//MARKS:- CONDITIONAL STATEMENTS
// Sometimes we want codes perform operation if a condition is true
// execute another line of code if it is false
// this can be handle by the conditional statement with if  else
// if(code is true){perform this action} else {perform this action}

 var age = 25
 var name = "Shayo"

if age == 25 {
   print("Shayo is \(age) years old")
}else {
   print("the if condition is false")
}
// since the if statement is true then its statement is printed

if age == 20 {
  print("Shayo is \(age) years old")
} else {
   print("The if condition is false so I am out")
}
// the if statements goes on like that as if.. elseif ..else
// this continue to happen until one of the condition is meant
// the statement of the condition meant is finally executed
// if none of the condition is satisfy, the else statement will be executed

//MARKS:- LOOPS
//This is use to perform iteration i.e number of times of operation needed
//1. for loop
for i in 1...10{
   print("God is good")       // this will print the statement 10 times with count from 1
}

var str = "Fakers gonna "    // assign string to variable str
for i in 1...4{              // count from 1 to 4
  str += " fake"             // add fake 4 times to str
}
print(str)                  // Fakers gonna fake fake fake fake

var people = ["players", "haters", "heartbreakers", "baby"]
var action = ["play", "hates", "break", "cry"]

for index in 0...2{                               // this perform the operation 3 times with count
                                              // from zero to 2
print("\(people[index]) gonna \(action[index])")      // index of array of people is printed at same index
                                                      // of that of action
}
// the total element in the array can be known with the use of count property
//people.count will give 3
//but to get the last index we do people.count - 1 we get 2
// you can put loops inside loop

for i in 0 ..< people.count{                     // the loop goes 4 times
  for i in 1...3 {                                // the loop goes 3 times
    print("\(people[i]) gonna \(action[i])")      // total of 12 times
  }
}

//MARKS:- When we dont know the number of
//count an operation will happen we use while loop

var counter = 0
var sum = 0
while true {
  print("counter is now: \(counter)")
  counter += 1                            // inctement counter
  if counter == 6 {                       // stop when it is 6
    break
  }
sum += counter                           // continue adding the value of counter into sum
}

var songs = ["woo", "baby girl", "loadinginging"]
for song in songs {
  if song == "baby girl"{
    continue
  }
  print("my favorite song is \(song)")
}

//MARKS:- SWITCH CASE
// this test the block of variable one is looking
//for and once it is found it execute and stop
// it ensures the case are exhaustive
//otherwise xcode wont compile

let liveAlbums = 2

switch liveAlbums {
case 0:
  "lets go to Dubai"
case 1:
  "where are you"
case 2:
  "this will be executed"
default:
  "this is a default incase the search is not found"
}
// case range operator can also be use as well 0...2

//MARKS:- FUNCTIONS

func getOut(){                        // function without parameter
  print("lets go home if you don't mind")
}
getOut()                         // function call

func getOutNow(name:String){
  print("lets go home if you don't mind \(name)")
}
getOutNow(name: "Samuel")

func albumRelease(name:String, year: Int){
  print("\(name) is release in \(year)")
}
albumRelease(name: "BOO" , year: 2010)

func getMeal(_ food: String) -> Bool {
  if food == "rice" {
     true
  }
  else if food == "beans" {
   return  true
  }else {
      return false
  }
  return ( 0 != 0)

}
getMeal( "yam")
	import UIKit

	//MARKS:- DICTIONARIES This is can be compare with an array in the sense that, it uses keys to address position of element in a collection but array uses index to access the position of element in a collection
	var person = ["first":"Kemi", "second":"Bola", "last":"Temi", "month":"December", "website":"www.google.com"]
	person["first"] // output: Kemi
	person["month"] // output: December

	//MARkS:- from the output above the key is first and the value is Kemi
	// dictionaries use keys and values unlike array that use index to search
	// for position of items in a collection
	// ["key": "value" ] which can be in the form of [string: string], [Int: string]

	//MARKS:- CONDITIONAL STATEMENTS
	// Sometimes we want codes perform operation if a condition is true
	// execute another line of code if it is false
	// this can be handle by the conditional statement with if else
	// if(code is true){perform this action} else {perform this action}

	var age = 25
	var name = "Shayo"

	if age == 25 {
	print("Shayo is \(age) years old")
	}else {
	print("the if condition is false")
	}
	// since the if statement is true then its statement is printed

	if age == 20 {
	print("Shayo is \(age) years old")
	} else {
	print("The if condition is false so I am out")
	}
	// the if statements goes on like that as if.. elseif ..else
	// this continue to happen until one of the condition is meant
	// the statement of the condition meant is finally executed
	// if none of the condition is satisfy, the else statement will be executed

	//MARKS:- LOOPS
	//This is use to perform iteration i.e number of times of operation needed
	//1. for loop
	for i in 1...10{
	print("God is good") // this will print the statement 10 times with count from 1
	}

	var str = "Fakers gonna " // assign string to variable str
	for i in 1...4{ // count from 1 to 4
	str += " fake" // add fake 4 times to str
	}
	print(str) // Fakers gonna fake fake fake fake

	var people = ["players", "haters", "heartbreakers", "baby"]
	var action = ["play", "hates", "break", "cry"]

	for index in 0...2{ // this perform the operation 3 times with count
	// from zero to 2
	print("\(people[index]) gonna \(action[index])") // index of array of people is printed at same index
	// of that of action
	}
	// the total element in the array can be known with the use of count property
	//people.count will give 3
	//but to get the last index we do people.count - 1 we get 2
	// you can put loops inside loop

	for i in 0 ..< people.count{ // the loop goes 4 times
	for i in 1...3 { // the loop goes 3 times
	print("\(people[i]) gonna \(action[i])") // total of 12 times
	}
	}

	//MARKS:- When we dont know the number of
	//count an operation will happen we use while loop

	var counter = 0
	var sum = 0
	while true {
	print("counter is now: \(counter)")
	counter += 1 // inctement counter
	if counter == 6 { // stop when it is 6
	break
	}
	sum += counter // continue adding the value of counter into sum
	}

	var songs = ["woo", "baby girl", "loadinginging"]
	for song in songs {
	if song == "baby girl"{
	continue
	}
	print("my favorite song is \(song)")
	}

	//MARKS:- SWITCH CASE
	// this test the block of variable one is looking
	//for and once it is found it execute and stop
	// it ensures the case are exhaustive
	//otherwise xcode wont compile

	let liveAlbums = 2

	switch liveAlbums {
	case 0:
	"lets go to Dubai"
	case 1:
	"where are you"
	case 2:
	"this will be executed"
	default:
	"this is a default incase the search is not found"
	}
	// case range operator can also be use as well 0...2

	//MARKS:- FUNCTIONS

	func getOut(){ // function without parameter
	print("lets go home if you don't mind")
	}
	getOut() // function call

	func getOutNow(name:String){
	print("lets go home if you don't mind \(name)")
	}
	getOutNow(name: "Samuel")

	func albumRelease(name:String, year: Int){
	print("\(name) is release in \(year)")
	}
	albumRelease(name: "BOO" , year: 2010)

	func getMeal(_ food: String) -> Bool {
	if food == "rice" {
	true
	}
	else if food == "beans" {
	return true
	}else {
	return false
	}
	return ( 0 != 0)

	}
	getMeal( "yam")