ruby-on-rails - 如何在 View 中显示散列中的特定键值对？

Question

我的 Controller 中有一个散列， View 从中获取数据以显示。在我看过的教程中，我学会了如何显示散列中的每个键、值对...但是如何只显示我想要的键、值对？

    creating the hash in the controller
    @app = {'title' => title, 'description' => description,
            'active' => active, 'featured'=> featured,
            'partner'=>partner
            }

    view: this displays each of the key,value pairs
    <% @app.each do |key, value| %>
        <li><%= "#{key}: #{value}" %>
    <% end %>

    tried this in the view just to display title, but isn't working
    <% @app.select do |ind_app| %>
        <strong><%= ind_app["title"] %>
    <% end %>

Answer 1

想要显示标题，就求标题吧!无需循环，您可以像这样直接访问哈希的所有值:

<strong><%= @app['title'] %></strong>