Ruby style guide essentials - Mini Project: Build & Apply

Ruby Style Guide Essentials

📖 Scenario: You are working on a small Ruby project where clean and readable code is important. Following a style guide helps everyone understand and maintain the code easily.

🎯 Goal: You will write Ruby code following essential style guide rules: using snake_case for variable names, proper indentation, and clear method definitions.

📋 What You'll Learn

Use snake_case for variable and method names

Indent code blocks with 2 spaces

Use meaningful variable names

Define a method with proper syntax

Print output using puts

💡 Why This Matters

🌍 Real World

Writing clean Ruby code helps teams work together and maintain projects easily.

💼 Career

Following style guides is a key skill for Ruby developers in professional environments.

1

Create a variable with snake_case

Create a variable called user_name and assign it the string "Alice".

Ruby

# Create a variable called user_name and assign it "Alice"
# Your code here

Need a hint?

Use lowercase letters and underscores for variable names in Ruby.

2

Define a method with proper indentation

Define a method called greet_user that takes no arguments and prints "Hello, " followed by the user_name variable. Use 2 spaces for indentation inside the method.

Ruby

user_name = "Alice"
# Define method greet_user with 2 spaces indentation
# Your code here

Need a hint?

Indent the puts line with 2 spaces inside the method.

3

Call the method to print greeting

Call the method greet_user to display the greeting message.

Ruby

user_name = "Alice"
def greet_user
  puts "Hello, #{user_name}"
end
# Call greet_user method below
# Your code here

Need a hint?

Simply write the method name followed by parentheses or without to call it.

4

Final output: Greeting message

Run the program and print the output of the greet_user method call.

Ruby

user_name = "Alice"
def greet_user
  puts "Hello, #{user_name}"
end
greet_user
# Print output above

Need a hint?

The program should print Hello, Alice exactly.