Rails - Looping but setting a MAX ?

Question

Hello,

I have the following:

@books.each do |book|
... stuff
end

I'm curious to learn. How can I update the above to do something like loop through @books but not more than 6 times, MAX/ceiling of 6?

Thanks

Answer 1

@books.each_with_index do |book, i|
  if i >= 6
    break
  end
  ... stuff
end

Answer 2

@books.each_with_index do |book, i|
   break if i > 5
   #stuff...
end

Answer 3

The easiest way to do this is to take a slice of the Array and iterate over that:

@books[0,6].each do |book|
  # ...
end

The alternative is to keep the Array intact and bail out of the loop when you're done:

@books.each_with_index do |book, i|
  break if (i == 6)

  # ...
end