retrospring/app/views/user/questions.js.erb

$('#questions').append('<% @questions.each do |a|
  %><%= j render 'shared/question', a: a
%><% end %>');
<% if @questions.next_page %>
$('#pagination').html('<%= j will_paginate @questions, renderer: BootstrapPagination::Rails, page_links: false %>');
<% else %>
$('#pagination, #load-more-btn').remove();
<% end %>