json/docs/mkdocs/docs/api/basic_json/is_object.md

nlohmann::basic_json::is_object

constexpr bool is_object() const noexcept;

This function returns #!cpp true if and only if the JSON value is an object.

Return value

#!cpp true if type is an object, #!cpp false otherwise.

Exception safety

No-throw guarantee: this member function never throws exceptions.

Complexity

Constant.

Examples

??? example

The following code exemplifies `is_object()` for all JSON types.

```cpp
--8<-- "examples/is_object.cpp"
```

Output:

```json
--8<-- "examples/is_object.output"
```

Version history

• Added in version 1.0.0.