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66 lines
1.3 KiB
Markdown
66 lines
1.3 KiB
Markdown
# <small>nlohmann::basic_json::</small>crbegin
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```cpp
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const_reverse_iterator crbegin() const noexcept;
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```
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Returns an iterator to the reverse-beginning; that is, the last element.
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## Return value
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reverse iterator to the last element
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## Exception safety
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No-throw guarantee: this member function never throws exceptions.
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## Complexity
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Constant.
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## Examples
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??? example
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The following code shows an example for `crbegin()`.
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```cpp
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#include <iostream>
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#include <nlohmann/json.hpp>
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using json = nlohmann::json;
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int main()
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{
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// create an array value
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json array = {1, 2, 3, 4, 5};
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// get an iterator to the reverse-beginning
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json::const_reverse_iterator it = array.crbegin();
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// serialize the element that the iterator points to
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std::cout << *it << '\n';
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}
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```
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Output:
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```json
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5
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```
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## See also
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- [crend](crend.md) returns a const reverse iterator to one before the first element
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- [rbegin](rbegin.md) returns a reverse iterator to the last element
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- [cbegin](cbegin.md) returns a const iterator to the first element
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- [Iterators](../../features/iterators.md) - the article on iterators
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## Version history
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- Added in version 1.0.0.
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