:sig
bool DValue::is_array() const

:params
return value : true when the node is map-shaped

:see
>types
0_DValue
is_list
has
each

:content
Tests whether a `DValue` node is map-shaped, i.e. holds nested child values rather than a scalar. This is a read accessor: it is `const`, never creates or modifies nodes, and dereferences internal references automatically.

`is_array()` is true for both list-like and keyed containers; use `is_list()` to distinguish the two:

```cpp
DValue rows = sqlite_query(db, "select * from notes");
if(rows.is_array())
{
	rows.each([&](const DValue& row, String key) {
		// ...
	});
}
```

Scalar values (strings, numbers, booleans, pointers) return `false`, as do unresolvable references.

## Related Concepts

- PHP: `is_array()`
- JavaScript: `typeof value === "object"`