What is the purpose of UseDeveloperExceptionPage()?

Answer:

This method belongs to the Microsoft.AspNetCore.Builder namespace of DeveloperExceptionPageExtensions static class. The purpose of this function is to capture synchronous and asynchronous System.Exception instances from the pipeline and generates HTML error responses. It returns a reference to the app after the operation is completed.We use the UseDeveloperException() extension method to render the exception during the development mode.