Learn the basics of Ruby with hands-on practice.

Become a Ruby Professional

Do you want to be an interpreted language geek? Are you tired of getting entangled in the dense syntaxes? Does it irritate you to compile your code to machine language first? Are you looking for an easy-to-use scripting language? Well, Ruby is the best pick for you then!
This introductory module will be providing you with hands-on practice with the support of a bunch of interactive illustrations, exercises, and the integral topics of variables, built-in classes, objects, conditionals, blocks, and much more!

Learn Ruby from Scratch

## Problem statement

Write a `Rectangle` class with `height` and `width` attributes and an `area()` instance method.

- Populate these attributes through the `initialize(height, width)` method.
- Define attribute readers for these attributes.

### Example

With your definition, consider the following code:

```ruby
rect = Rectangle.new(5,10)
puts rect.height
puts rect.width
puts rect.area()
```

It’s expected to print:

```ruby
5
10
50
```

# Problem statement

Write a `Rectangle` class with `height` and `width` attributes and an `area()` instance method.

- Populate these attributes through the `initialize(height, width)` method.
- Define attribute readers for these attributes.

## Example

With your definition, consider the following code:

```ruby
rect = Rectangle.new(5,10)
puts rect.height
puts rect.width
puts rect.area()
```

It’s expected to print:

```ruby
5
10
50
```

Implement a small class representing the rectangle shape. 

Exercise 1: Make a Rectangle Class

Implement a small class representing the rectangle shape.

The Big Picture

Variables

Built-in Class: Numeric

Built-in Class: String

Built-in Classes: TrueClass, FalseClass and NILClass

Built-in Class: Symbol

Built-in Class: Array

Built-in Class: Hash

Objects

Methods

Operators are Methods

Blocks

Get Ready for some more Drill!

Conditionals

Coding Challenge: Truthiness and Equivalence

Lets run another lap with hashes

Writing Classes

Mini project 1

Spotlight on Things Unremarked

Advanced Topics

Your Toolkit!

Appendix: Mailbox Project Prerequisite

Conclusion

Exercise 1: Make a Rectangle Class

Problem statement