📜  rails loop - Ruby (1)

📅  最后修改于: 2023-12-03 14:46:54.212000             🧑  作者: Mango

Rails Loop - Ruby

Rails Loop is a Ruby method that helps to loop through a collection of elements in a Rails application.

Syntax

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.

Example

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.

Conclusion

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.