Ruby Loops - Scope

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You can define variables within methods (giving them local scope). This means that you can only use the variable within the method and not outside of it.

secret_agent = “James Bond”

def spy_man()

text = “Bond”

puts text

end

spy_man

puts text

This code will print the following:

  Bond

  James Bond

As you can see in the code we have two variables named text. Normally this is not allowed. But since one of the variables named text is within a method, and therefore has local scope, the program does not see it outside of the method and allows you to have two variables with the same name.

That concludes this episode of Ruby for the Newbie. In the next article we will look at Classes and Objects, and beyond that we will explore working with Rail and creating web pages. So check back often for more articles on these topics.

Till then...

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