Semicolons are optional behavior in Swift - Mini Project: Build & Apply

Semicolons are optional behavior

📖 Scenario: Imagine you are writing a simple Swift program to greet friends. Swift allows you to write code with or without semicolons at the end of each statement. This project will help you understand how semicolons work in Swift.

🎯 Goal: You will create a small Swift program that prints greetings to friends using semicolons optionally. You will see how semicolons can be used or omitted without changing the program's behavior.

📋 What You'll Learn

Create a variable with a friend's name

Create a variable with another friend's name

Print greetings to both friends using semicolons at the end of statements

Print greetings to both friends without semicolons at the end of statements

💡 Why This Matters

🌍 Real World

Knowing that semicolons are optional helps you read Swift code written by others and write your own code in a style you prefer.

💼 Career

Swift developers often write clean code without semicolons, but understanding them is important for reading legacy code or code from other languages.

1

Create variables with friend names

Create two variables called friend1 and friend2 with the exact values "Alice" and "Bob" respectively.

Swift

// Create variables friend1 and friend2 with names
// Your code here

Need a hint?

Use var to create variables and assign the exact string values.

2

Add semicolons to print greetings

Add two print statements to greet friend1 and friend2 using semicolons at the end of each statement. Use print("Hello, \(friend1)!"); and print("Hello, \(friend2)!"); exactly.

Swift

var friend1 = "Alice"
var friend2 = "Bob"
// Add print statements with semicolons
// Your code here

Need a hint?

Remember to put a semicolon ; at the end of each print statement.

3

Rewrite print statements without semicolons

Rewrite the two print statements to greet friend1 and friend2 exactly as before but without semicolons at the end of each statement.

Swift

var friend1 = "Alice"
var friend2 = "Bob"
// Rewrite print statements without semicolons
// Your code here

Need a hint?

Simply remove the semicolons at the end of each print statement.

4

Print all greetings to show output

Add print statements to display greetings to friend1 and friend2 exactly as Hello, Alice! and Hello, Bob! without semicolons. This will show the program output.

Swift

var friend1 = "Alice"
var friend2 = "Bob"
print("Hello, \(friend1)!")
print("Hello, \(friend2)!")
// Print greetings again to show output
// Your code here

Need a hint?

Use print statements to show the greetings exactly as output.