使用js块
#application.html.erb
<%= yield :javascripts %>
#index.html.erb
<%= content_for :javascripts do %>
<script>
$("#selectAll").select_all();
</script>
<% end %>
application.js中turbolinks存在与否的加载区别
#不存在turblinks
$(document).ready(function(){
//...
}
#存在turbolinks
$(document).on("turbolinks:load", function(){
//...
})