Ruby%20On%20Rails%20Interview%20Questions%20and%20Answers

Answer:

Range is a great way to declare continuous variables. You should use it to declare arrays and other types of collections.

range1 = (1..4).to_a
 => [1, 2, 3, 4] 
puts range1
1
2
3
4

You can also create strings in this format and it fills in the interim values automatically.

range2 = ('bar'..'bat').to_a
puts range2
bar
bas
bat

Since the end result of using range is an array you can also iterate over it just like any other array.

range2.each do |str|
   puts "In Loop #{str}"
end

This produces the result as shown below:

In Loop bar
In Loop bas
In Loop bat

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