Learning Objectives

1. Recap topic 1 - Subtopics

2. Milestone Task1, task 2 and Task 3 to be completed

Declared with let, values are fixed after initialization.

​Constants

Declared with var, values can be changed.

​Variables

Variables vs. Constants

​Example

var myVariable = 10

myVariable = 20 // Allowed

let myConstant = 10

myConstant = 20 // Error: Cannot assign to value: 'myConstant' is a 'let' constant

Arithmetic Operators

var sum = 10 + 5

var difference = 10 - 5

var product = 10 * 5

var quotient = 10 / 5

var remainder = 10 % 3

Compound Operators

var number = 10

number += 5 // Equivalent to number = number + 5

​Boolean Operators

let isSunny = true

let isWeekend = false

if isSunny && isWeekend {

print("Perfect day for a picnic!")

}

​Switch Syntax

let day = 3

switch day {

case 1:

print("Monday")

case 2:

print("Tuesday")

case 3:

print("Wednesday")

default:

print("Another day")

}

Complete and SUBMIT - MILESTONE TASK1, TASK 2, TASK 3