In ExtJS, what is the difference between features and plugins?

Question

I have been trying to find a simple explanation for the difference between a feature and a plugin. They both seem to add some additional functionality to a component, but what is sets them apart? When would you create one or the other?

Answer 1

A feature is a type of plugin that's specific to the grid panels.

Feature Documentation

Answer 2

Both provide extra functionality.

A feature is something that alters the markup of the grid in some way

• Grouping
• Row body

A plugin fits into any other category.