1. I would like to understand the
purpose of the Duplicate() function
when used on a variable before it's
returned by a function. It would be nice if you
could provide an example of when the
use of Duplicate() is important or
necessary.
2. Does it have other purposes?

I have heard others mention Duplicate() in the context of data integrity, and I would like to get a better understanding of how it works and when to use it.

I often see this:

```
<cfreturn Duplicate(local.myVariable)>

```

When this also returns the same result:

```
<cfreturn local.myVariable>

```