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json/api/basic_json/crbegin.md
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2026-07-08 18:19:46 +00:00

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# <small>nlohmann::basic_json::</small>crbegin
```cpp
const_reverse_iterator crbegin() const noexcept;
```
Returns an iterator to the reverse-beginning; that is, the last element.
![Illustration from cppreference.com](../../images/range-rbegin-rend.svg)
## Return value
reverse iterator to the last element
## Exception safety
No-throw guarantee: this member function never throws exceptions.
## Complexity
Constant.
## Examples
??? example
The following code shows an example for `crbegin()`.
```cpp
--8<-- "examples/crbegin.cpp"
```
Output:
```json
--8<-- "examples/crbegin.output"
```
## Version history
- Added in version 1.0.0.