rails, ruby,

Ruby Ranges Overview

Swapnil Gourshete Swapnil Gourshete Follow Aug 15, 2019 · 1 min read
Share this

Range in ruby can be used in following situations

  • as Sequence

Range can be used to generate a sequence as simple as (1..100) will generate a sequence from 1 to 100.

array = (1..100).to_a

will initialize an array of class Integer starting from 1 to 100. And it is easiest way to declare an array of sequence in ruby.

  • as Intervals

if ((1..10) === 5)

puts "5 lies in (1..10)"

end

===>

5 lies in (1..10)

  • as condition

    score = 70
      
    result = case score
       when 0..40 then "Fail"
       when 41..60 then "Pass"
       when 61..70 then "Pass with Merit"
       when 71..100 then "Pass with Distinction"
       else "Invalid Score"
    end
      
    puts result
    

Cheers!!!


Swapnil Gourshete
Written by Swapnil Gourshete Follow
Hi I am Swapnil, a Software Engineer and computer science enthusiastic