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api/json_pointer/front.md

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+# <small>nlohmann::json_pointer::</small>front
+
+```cpp
+const string_t& front() const;
+```
+
+Return the first reference token.
+
+## Return value
+
+First reference token.
+
+## Exceptions
+
+Throws [out_of_range.405](../../home/exceptions.md#jsonexceptionout_of_range405) if the JSON pointer has no parent.
+
+## Complexity
+
+Constant.
+
+## Examples
+
+??? example
+
+    The example shows the usage of `front`.
+     
+    ```cpp
+    --8<-- "examples/json_pointer__front.cpp"
+    ```
+    
+    Output:
+    
+    ```json
+    --8<-- "examples/json_pointer__front.output"
+    ```
+
+## Version history
+
+- Added in version 3.12.x.