Function getDepth

getDepth<A>(zipper: Zipper.Zipper<A>): number
Get the depth of the zipper, where a zipper focused on the root node gets a depth of 0.
Type Parameters
- A
  Underlying tree type.
Parameters
- zipper: Zipper.Zipper<A>
  Zipper to be queried.
Returns number
Integer depth of the zipper.
Example
```
import {Zipper, from, of} from 'effect-tree'

const tree = from(1, of(2), of(3))

const zipper = Zipper.fromTree(tree)

expect(Zipper.getDepth(zipper)).toBe(0)

const moved = Zipper.head(zipper)

expect(Zipper.getDepth(moved)).toBe(1)
```
- Defined in src/zipper/data.ts:201