Câu hỏi phỏng vấn Ruby on Rails
Câu hỏi

How should you use nested layouts?

Câu trả lời

Here is how you should use nested layouts in Ruby on Rails:

Nested Layouts in Ruby on Rails

Nested layouts in Rails allow you to create a hierarchy of layouts, where a child layout inherits from a parent layout. This is useful when you have common elements across multiple pages, such as a header, sidebar, and footer, but need to customize the content area for specific pages or sections of your application.

Here's how you can use nested layouts in Rails:

1. Create a parent layout

Create a parent layout file, for example, application.html.erb, which will contain the common elements shared across all pages.

<!DOCTYPE html>
<html>
  <head>
    <title>My Rails App</title>
    <%= stylesheet_link_tag 'application', media: 'all' %>
    <%= javascript_pack_tag 'application' %>
  </head>

  <body>
    <%= render 'layouts/header' %>
    <%= yield :layout %>
    <%= render 'layouts/footer' %>
  </body>
</html>

2. Create child layouts

Create child layout files that inherit from the parent layout. For example, you ...

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