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api/basic_json/object_comparator_t.md

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+# <small>nlohmann::basic_json::</small>object_comparator_t
+
+```cpp
+using object_comparator_t = typename object_t::key_compare;
+// or
+using object_comparator_t = default_object_comparator_t;
+```
+
+The comparator used by [`object_t`](object_t.md). Defined as `#!cpp typename object_t::key_compare` if available,
+and [`default_object_comparator_t`](default_object_comparator_t.md) otherwise.
+
+## Examples
+
+??? example
+
+    The example below demonstrates the used object comparator.
+
+    ```cpp
+    --8<-- "examples/object_comparator_t.cpp"
+    ```
+    
+    Output:
+    
+    ```json
+    --8<-- "examples/object_comparator_t.output"
+    ```
+
+## Version history
+
+- Added in version 3.0.0.
+- Changed to be conditionally defined as `#!cpp typename object_t::key_compare` or `default_object_comparator_t` in
+  version 3.11.0.