Question

I have created the following code as part of an excercise in a Ruby tutorial I am trying:

title = ['Chapter 1: Numbers','Chapter 2: Letters','Chapter 3: Variables']
pages = ['Page 1','page 72','page 118']

linewidth = 40
header = '*Table of Contents*'

puts header.center linewidth
puts
puts ((title[0]).ljust linewidth/2) + ((pages[0]).rjust linewidth/2)
puts ((title[1]).ljust linewidth/2) + ((pages[1]).rjust linewidth/2)
puts ((title[2]).ljust linewidth/2) + ((pages[2]).rjust linewidth/2)

My question is can the above be done without clarifying which part of the array to display? i.e. can I just, in one bit of code, get it to list all titles and all pages in the array in order? If so how would this be done?

Answer 1

You can output list like this:

titles.each_with_index do |title,index|
  puts title.ljust(linewidth/2) + (b[index] ? b[index].rjust(linewidth/2) : nil)
end