# <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.

<div class="nj-fig-wrap" markdown>
--8<-- "images/range-rbegin-rend.svg"
</div>

<p class="nj-caption" markdown>`crbegin()` points to the last element, like `rbegin()`, and `rend()` to the position
before the first element. The upper row is the reversed sequence and the lower row the forward sequence; dashed arrows
link each reverse iterator to the forward iterator it stores, and dashed cells are past-the-last positions.</p>

## 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"
    ```

## See also

- [`crend`](crend.md) - returns a const reverse iterator to one before the first element
- [`rbegin`](rbegin.md) - returns a reverse iterator to the last element
- [`cbegin`](cbegin.md) - returns a const iterator to the first element
- [Iterators](../../features/iterators.md) - the article on iterators

## Version history

- Added in version 1.0.0.