Explore OOP in Ruby to gain a deeper understanding of Ruby objects, Ruby methods, and Ruby classes, enabling you to solve multiple problem sets with an object-oriented approach.

Become a Ruby Developer

Module Overview
Ruby is a smart, functional, and object-oriented programming language that blends the best features of scripting power with user-friendly syntax. In this module, we’ll dive into OOP in Ruby with hands-on practice using interactive exercises and illustrations. We'll start by creating and managing Ruby objects. Next, we’ll explore Ruby methods and blocks, essential tools in Ruby programming. Finally, we'll delve into Ruby classes and how they are used to implement OOP principles.

Ruby OOP (Object-Oriented Programming)

What's the output of the following code?

``` ruby
p [5, 3, 4, 2, 1].detect { |number| number.even? } 
```

What’s the output of the following code?
<pre><code class="language-ruby">p [5, 3, 4, 2, 1].detect { |number| number.even? } 
</code></pre>

What's the output of the following code?
```ruby
p [10,11,12,13,14].collect { |number| number + 2 }
```

What’s the output of the following code?
<pre><code class="language-ruby">p [10,11,12,13,14].collect { |number| number + 2 }
</code></pre>

What's the output of the following code?

```ruby
p ["a", "b", "c", "d"].collect.with_index { |element, index| element * index }
```

What’s the output of the following code?
<pre><code class="language-ruby">p [&quot;a&quot;, &quot;b&quot;, &quot;c&quot;, &quot;d&quot;].collect.with_index { |element, index| element * index }
</code></pre>

What's the output of the following code?

``` ruby
p [2, 3, 4].map{ |number|  2 * number }.select{ |number| number.even? }
```

What’s the output of the following code?
<pre><code class="language-ruby">p [2, 3, 4].map{ |number| 2 * number }.select{ |number| number.even? }
</code></pre>

Objects

Blocks

Conditionals

Writing Classes

Mini project 1

Conclusion

Quiz on Blocks