The [Authorize] attribute in ASP.NET Core is primarily used for Authorization, not Authentication. It restricts access to a particular action method or controller to only authenticated users who meet specific authorization requirements. This helps in controlling who can access different parts of your application based on roles or policies.

When defining a one-to-many relationship in Entity Framework Core, the HasMany method is commonly used to represent the "many" side of the relationship. This method allows you to specify the navigation property on the "one" side and configure various aspects of the relationship, such as cascading deletes and foreign key constraints on the "many" side. It's an essential part of modeling complex database relationships.

In ASP.NET Core MVC, the default convention for locating views is in the "Views" folder within the project's directory structure. Views contain the markup and templates used to generate the HTML or other output sent to the client's browser.

ASP.NET Core routing uses a first-match-wins strategy. In this case, the incoming request "/products/new" matches the second route "/products/new" exactly. Therefore, it will not proceed to check other routes and will be handled by the "/products/new" route.

The asp-action attribute in a Razor form specifies the Action Method to which the form will be submitted. This attribute defines the method in the controller that will handle the form submission. It's an essential part of creating interactive web forms in ASP.NET Core.

In ASP.NET Core, configuration settings can be stored in various JSON files, such as "appsettings.json" for general settings. However, when deploying to production, the configuration values in "appsettings.Production.json" take precedence over those in "appsettings.json." This allows developers to maintain separate configurations for different environments.

The Blazor template in ASP.NET Core is designed for building web applications using C# and .NET. It ensures that JavaScript dependencies are managed using the Node package manager (npm) when necessary. This template provides a framework for building web applications that can run entirely on the client side or with server-side rendering, giving developers flexibility in their approach.

The "Email Confirmation" feature in ASP.NET Core Identity allows users to verify their email addresses before gaining full access to the application. This is crucial for scenarios like e-commerce websites, ensuring that users have valid and verified email addresses before making purchases.

ASP.NET Core introduced a flexible and extensible configuration system that allows developers to configure applications using various sources, such as JSON, XML, environment variables, command-line arguments, and more. This approach offers better configurability and ease of use compared to the traditional ASP.NET configuration methods.

In the project.json file, you would specify custom scripts that should run during build or post-build events in the "scripts" section. This section allowed developers to define pre-build, post-build, and other custom scripts for various project tasks.