This course teaches Ruby for beginners by demystifying the basics of Ruby programming, laying the foundation for becoming a proficient Ruby developer.

ruby.tar.gz

ruby

The Ruby programming language, known for its simplicity and readability, is perfect for programming beginners. This course introduces core programming concepts and problem-solving techniques, providing a solid foundation in Ruby. You’ll start with basic program development, decision-making, loops, strings, and arrays, reinforced by hands-on exercises, quizzes, and coding challenges.
By the end of the course, you’ll gain essential skills that can advance your career as a Ruby developer in the tech industry.

Learn Ruby

`msg = '''This string has ' and " in it'''`


`msg = "This string has \' and \" in it"`

**(Select all that apply.)** We want to store the following string in the variable `msg`. Which option shows the correct syntax in Ruby?

```text
This string has ' and " in it
```

(Select all that apply.) We want to store the following string in the variable <code>msg</code>. Which option shows the correct syntax in Ruby?
<pre><code class="language-text">This string has ' and &quot; in it
</code></pre>

What is the result when the following program is executed?

```ruby
a = ['a','b','c','d','e','f','g','h','i']
print(a[2...-2])
```

What is the result when the following program is executed?
<pre><code class="language-ruby">a = ['a','b','c','d','e','f','g','h','i']
print(a[2...-2])
</code></pre>

What is the output when the following program is executed?

```ruby
a = ['a','b','c','d','e','f','g','h','i']
for i in -2...2
   print(a[i]," ")
end
```


What is the output when the following program is executed?
<pre><code class="language-ruby">a = ['a','b','c','d','e','f','g','h','i']
for i in -2...2
 print(a[i],&quot; &quot;)
end
</code></pre>

What is the output when the following program is executed?

```ruby
a = ['a','b','c','d','e','f','g','h','i']
i = 1
while i < a.length
 print(a[-i]," ")
 i += 2
end
```

What is the output when the following program is executed?
<pre><code class="language-ruby">a = ['a','b','c','d','e','f','g','h','i']
i = 1
while i &lt; a.length
 print(a[-i],&quot; &quot;)
 i += 2
end
</code></pre>

What is the result when the following program is executed?

```ruby
a = ['abcdefghi']
i = 1
while i < a[0].length
 print(a[0][i]," ")
 i += 2
end
```

What is the result when the following program is executed?
<pre><code class="language-ruby">a = ['abcdefghi']
i = 1
while i &lt; a[0].length
 print(a[0][i],&quot; &quot;)
 i += 2
end
</code></pre>

What is the result when the following program is executed?

```ruby
m = [[1,2,3],[4,5,6],[7,8,9]]
s = i = 0
size = 3
while i < size
 j = 0
 while j < size
 s += m[j][i]
 j += 1
 end
 print(s," ")
 i += 1
end
```

What is the result when the following program is executed?
<pre><code class="language-ruby">m = [[1,2,3],[4,5,6],[7,8,9]]
s = i = 0
size = 3
while i &lt; size
 j = 0
 while j &lt; size
 s += m[j][i]
 j += 1
 end
 print(s,&quot; &quot;)
 i += 1
end
</code></pre>

Test your knowledge of strings and arrays in Ruby.

About the Course

Ruby Basics

Loops in Ruby

Ruby Strings and Arrays

Ruby Methods

Wrap Up

Quiz on Strings and Arrays