Learning Functional Programming in Go

Functional IoC example

Contrast the text-based Bash script example to a web application where the user is in control:

In a GUI application, control is inverted. Instead of the program forcing the next user interaction, the user is mostly in control of what happens next. The IoC container is a web application framework that runs an event loop and handles the callback when the user clicks on controls, such as an item in the drop-down list or a submit button.

For some J2EE applications, IoC can also come in the form of XML configuration files that are injected into a Spring framework.

In a product shopping example, dependencies would be things ...