Question

I have an array:

<% @widgets.each do |w| %>
...
<% end %>

How can I display them in groups? Let’s say by 4:

<div>1, 2, 3, 4</div>
<div>5, 6, 7, 8</div>
etc.

Thank you.

Answer 1

Try to use each_slice(n):

require 'erb'

@widgets = (1..8).to_a

template = <<EOF
<% @widgets.each_slice(4) do |w| %>
  <div><%= w.join(', ') %></div>
<% end %>
EOF

puts ERB.new(template).result(binding)
# =>
  <div>1, 2, 3, 4</div>
  <div>5, 6, 7, 8</div>