When destructuring objects, I sometimes run into the issue of not knowing whether or not keys exist, and then trying to pull values from them. This obviously errors, since they are undefined. For example:

Expecting something like this:

```
{ user: { name: { first: 'Trey', last: 'Hakanson' } } }

```

But I actually get this:

```
{ user: {} }

```

and attempting to destructure like this errors:

```
const { user: { name: { first: firstName, last: lastName } } } = data

```

is there any way to assign a default value earlier in the deconstruction? Such as assigning `name = { first: 'Hello', last: 'World' }` if the `name` key doesn't exist?