Javascript, Jquery inside Rails Helper

Question

Can I use javascript inside rails helper ?

If yes then how?

I am trying with the javascript tag inside application_helper.rb

javascript_tag "$('#all_records tr').slice(- (<%= no_of_rows_remove %>)).remove();"

but it doesn't working.

can anyone suggest me how to do it?

Answer 1

Your helper function should be like:

def helper_function_name
  number_of_rows_to_remove = 10
  js = "$('#all_records tr').slice(#{number_of_rows_to_remove}).remove();"
  return js.html_safe
end

and in your view:

<%= helper_function_name %>