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 `leap_year?` method that takes a year (a number), and determines if it’s a leap year.



### Example
```ruby
leap_year?(2000)
leap_year?(2020)
leap_year?(2022)
leap_year?(2100)

```

This should print out:

```
true
true
false
false

```


Recall that a leap year meets two qualifications:
- It’s divisible by four.
- It’s not divisible by 100 unless it’s divisible by 400.
 

>**Note:** You just need to provide the definition of the method, and it will be automatically evaluated on the given input value.


# Problem statement
Write a `leap_year?` method that takes a year (a number), and determines if it’s a leap year.



## Example
```ruby
leap_year?(2000)
leap_year?(2020)
leap_year?(2022)
leap_year?(2100)

```

This should print out:

```
true
true
false
false

```


Recall that a leap year meets two qualifications:
- It’s divisible by four.
- It’s not divisible by 100 unless it’s divisible by 400.
 

>**Note:** You just need to provide the definition of the method, and it will be automatically evaluated on the given input value.


Write a method that takes a year as input and determines whether it’s a leap year.


Exercise 4: Check Leap Year

Write a method that takes a year as input and determines whether it’s a leap year.

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 4: Check Leap Year

Problem statement