Variables Review

Let's revisit and test our understanding of variables in JavaScript.

Declaring and Assigning Variables

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A Common Gotcha

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```ruby
class Foo
end
```

class Foo
end

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```
class Bar
end
```

class Bar
end

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```ruby
def say_hello_world
# highlight
  puts 'Hello World!!!'
# endhighlight
end
```

def say_hello_world
# highlight
  puts 'Hello World!!!'
# endhighlight
end

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Variables Review

Variables and Variable Names

Declaring and Assigning Variables

Declaring Constants

Variable Scope

A Common Gotcha

GitHub Repository Submission