Ternary operator in Ruby - Mini Project: Build & Apply

Using the Ternary Operator in Ruby

📖 Scenario: You are creating a simple program to check if a person is old enough to vote. Voting age is 18 years or older.

🎯 Goal: Build a Ruby program that uses the ternary operator to decide if a person can vote based on their age.

📋 What You'll Learn

Create a variable called age with a specific integer value.

Create a variable called voting_age set to 18.

Use the ternary operator to create a variable can_vote that holds the string "Yes" if age is greater than or equal to voting_age, otherwise "No".

Print the value of can_vote.

💡 Why This Matters

🌍 Real World

Checking conditions quickly is common in programs, like deciding if someone can access a service based on age.

💼 Career

Understanding the ternary operator helps write concise and readable code, a skill valued in many programming jobs.

1

Set the person's age

Create a variable called age and set it to the integer 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

Set the voting age limit

Create a variable called voting_age and set it to the integer 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 the ternary operator to check voting eligibility

Use the ternary operator to create a variable called can_vote that is "Yes" if age is greater than or equal to voting_age, otherwise "No".

Ruby

age = 20
voting_age = 18
# Use the ternary operator to set can_vote to "Yes" or "No" based on age
# Your code here

Need a hint?

The ternary operator format is condition ? value_if_true : value_if_false.

4

Print the voting eligibility

Print the value of the variable can_vote.

Ruby

age = 20
voting_age = 18
can_vote = age >= voting_age ? "Yes" : "No"
# Print the value of can_vote
# Your code here

Need a hint?

Use puts to print the value of can_vote.