This is the first draft. We would appreciate it if you could point out any deficiencies.
I'm studying Ruby on Rails. I wasn't sure why the content coded in the view file was displayed properly in the browser even though it was not enclosed in the DOCTYPE declaration or HTML tags, but I understood the layout template and it was refreshing, so I will leave it as a memorandum.
It is a file that is automatically created in the following directory when you create an application with rails. app/views/layouts/application.html.erb
Normally, from the action defined in the controller, if there is a view file, it seems that the file is called, but in reality, the view file created in the layout template is embedded and returned.
Example) When creating a controller called posts app/controllers/posts_controller.rb
class PostsController < ApplicationController def index end end
Actually, what is returned as a response is the view file ** index.html.erb ** called in ** <% = yield%> ** in thetag of the template file below. It is said that it has been returned.