There is a series of methods, i.e., const\_defined?, const\_get, or const\_set, in standard ruby library.

`const_defined?,
const_get,
const_set`

And also, in the Active Support Core Extensions of Rails, their "qualified\_" counterparts for these individuals exist.

`qualified_const_defined?,
qualified_const_get,
qualifeid_const_set`

Is there anybody who can explain explicitly the differences between bare and qualified forms for these methods?

Thank you in advance.

Hyo