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@@ -65,7 +65,7 @@ As for `BasicJsonType`, with [`JSON_DIAGNOSTICS`](https://json.nlohmann.me/api/m
Duplicate keys: the first member wins
If the source text repeats a key, this resolves to the *first* member with it, not to the last one that [`materialize()`](https://json.nlohmann.me/api/basic_json_view/materialize/index.md) and `parse()` keep. See the [Notes on duplicate keys](https://json.nlohmann.me/api/basic_json_view/operator%5B%5D/#notes) of `operator[]` and [Duplicate keys](https://json.nlohmann.me/features/json_view/#duplicate-keys) for the reasons and for how to get the last value.
If the source text repeats a key, this resolves to the *first* member with it, not to the last one that [`materialize()`](https://json.nlohmann.me/api/basic_json_view/materialize/index.md) and `parse()` keep. See the [Notes on duplicate keys](https://json.nlohmann.me/api/basic_json_view/operator%5B%5D/#notes) of `operator[]` and [Duplicate keys](https://json.nlohmann.me/features/json_view/differences/#duplicate-keys) for the reasons and for how to get the last value.
Unlike [`operator[]`](https://json.nlohmann.me/api/basic_json_view/operator%5B%5D/index.md), which returns a [discarded](https://json.nlohmann.me/api/basic_json_view/is_discarded/index.md) view for a missing key or an out-of-range index, `at` always throws — exactly as `BasicJsonType::at` does, and with the same messages, so existing error handling written against `BasicJsonType::at` keeps working unchanged when switched to a view. This also holds for overload 3: unlike [`operator[]`](https://json.nlohmann.me/api/basic_json_view/operator%5B%5D/index.md) with a JSON pointer, which returns a discarded view for a missing key or an out-of-range index, `at` throws for those too (`out_of_range.403`/`out_of_range.401`).