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Niels Lohmann
ceb1cdb774
Conflicts in the See also lists of nine basic_json pages, is_discarded.md, and features/index.md, where develop (#5638) and this branch both added entries: kept both. Ran make amalgamate. Signed-off-by: Niels Lohmann <mail@nlohmann.me>
1.0 KiB
1.0 KiB
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"
```
See also
- is_array checks whether the JSON value is an array
- is_structured checks whether the JSON value is structured (array or object)
- type returns the type of the JSON value
- object_t the type used to store JSON objects
- basic_json_view::is_object - the same check on a zero-copy view
Version history
- Added in version 1.0.0.