📅  最后修改于: 2023-12-03 14:46:54.212000             🧑  作者: Mango
Rails Loop is a Ruby method that helps to loop through a collection of elements in a Rails application.
The syntax for using Rails Loop is as follows:
<% collection_name.each do |element| %>
# Code to execute on each element
<% end %>
Here, the collection_name
is the name of the collection you wish to loop through, while element
is a variable that will hold each item in the collection as the loop iterates through.
For example, let's say we have a Rails application with a collection of products
that we wish to display on a page. We can use Rails Loop to iterate over the products and display their names and prices:
<% products.each do |product| %>
<p><%= product.name %>: <%= product.price %></p>
<% end %>
Here, we use products
as the collection name and access the name
and price
attributes of each product
element in the loop.
Rails Loop is a simple yet powerful method that can make it easier to work with collections in a Rails application. By using this method, you can quickly iterate over collections and perform actions on each element as needed.