Inline if and unless (modifier form) in Ruby - Mini Project: Build & Apply

Inline if and unless (modifier form) in Ruby

📖 Scenario: You are creating a simple program to check if a person is old enough to vote. You want to use Ruby's inline if and unless modifier forms to make your code short and clear.

🎯 Goal: Build a Ruby program that uses inline if and unless modifiers to print messages based on a person's age.

📋 What You'll Learn

Create a variable age with the exact value 20

Create a variable voting_age with the exact value 18

Use inline if modifier to print 'You can vote!' if age is greater than or equal to voting_age

Use inline unless modifier to print 'You cannot vote yet.' if age is less than voting_age

Print the messages exactly as specified

💡 Why This Matters

🌍 Real World

Inline if and unless modifiers help write clean and readable code for simple conditions, like checking user input or status.

💼 Career

Many Ruby developers use these modifiers to keep code concise and easy to understand, especially in web development with frameworks like Ruby on Rails.

1

Create the age variable

Create a variable called age and set it to 20.

Ruby

# Create a variable called age and set it to 20
# Your code here

Need a hint?

Use = to assign the value 20 to the variable age.

2

Create the voting_age variable

Create a variable called voting_age and set it to 18.

Ruby

age = 20
# Create a variable called voting_age and set it to 18
# Your code here

Need a hint?

Use = to assign the value 18 to the variable voting_age.

3

Use inline if modifier to print voting message

Use puts "You can vote!" if age >= voting_age to print the message when age is greater than or equal to voting_age.

Ruby

age = 20
voting_age = 18
# Use inline if modifier to print "You can vote!" if age >= voting_age
# Your code here

Need a hint?

Write the print statement with if at the end to make it inline.

4

Use inline unless modifier to print non-voting message

Use puts "You cannot vote yet." unless age >= voting_age to print the message when age is less than voting_age. Then run the program to see the output.

Ruby

age = 20
voting_age = 18
puts "You can vote!" if age >= voting_age
# Use inline unless modifier to print "You cannot vote yet." unless age >= voting_age
# Your code here

Need a hint?

Use unless at the end of the print statement to check the opposite condition.