Ruby: Change class based on array value

Question

I'm looking to create an HTML structure with classes based on the values of arrays from Ruby. I have 6 classes that will be applied to different elements on an 8x8 grid. Each row will be a div with 8 span elements inside. In ruby, each nested array will be the div row and then each element will be a span assigned a class based on the value of the array element.

a = [[1,4,3,2,2,3,1,4]
     [4,5,6,6,3,2,3,5]]

So two rows will be created with 8 elements inside with the appropriate classes. Is it possible to convert data structures to HTML like this in Ruby?

ok32 · Accepted Answer · 2012-09-28 20:21:46Z

1

Maybe this is what you want:

a = [[1,4,3,2,2,3,1,4],
     [4,5,6,6,3,2,3,5]]

html = ''
a.each do |row|
  html << "<div>%s</div>" % row.map { |c| %{<span class="#{c}"></span>} }.join
end

# puts html

update

In other words:

html = a.map do |row|
  "<div>%s</div>" % row.map { |c| %{<span class="#{c}"></span>} }.join
end.join

answered Sep 28, 2012 at 20:21

ok32

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Comments

Ionut Hulub · Accepted Answer · 2012-09-28 20:02:40Z

0

umm.. yea. something among the lines of...

a.each do |subArray|
  puts "<div>"
  subArray.each do |element|
    puts '<span class="#{element}">Some text</span>'
  end
  puts "</div>
end

If this doesn't fit your needs please post a more specific question.

answered Sep 28, 2012 at 20:02

Ionut Hulub

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1 Comment

jdoe Over a year ago

puts to produce HTML? Really?

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