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Niels Lohmann
960d3435a1
Conflicts in See also lists (docs/mkdocs/docs/api/basic_json/begin.md,docs/mkdocs/docs/api/basic_json/cbegin.md,docs/mkdocs/docs/api/basic_json/cend.md,docs/mkdocs/docs/api/basic_json/end.md,docs/mkdocs/docs/api/basic_json/type_name.md), where develop (#5638) and this branch both edited: kept develop's entries and added this branch's basic_json_view links. Signed-off-by: Niels Lohmann <mail@nlohmann.me>
1.2 KiB
1.2 KiB
nlohmann::basic_json::begin
iterator begin() noexcept;
const_iterator begin() const noexcept;
Returns an iterator to the first element.
Return value
iterator to the first element
Exception safety
No-throw guarantee: this member function never throws exceptions.
Complexity
Constant.
Examples
??? example
The following code shows an example for `begin()`.
```cpp
--8<-- "examples/begin.cpp"
```
Output:
```json
--8<-- "examples/begin.output"
```
See also
- end returns an iterator to one past the last element
- cbegin returns a const iterator to the first element
- rbegin returns a reverse iterator to the last element
- items returns an iteration proxy to access keys and values during range-based for loops
- Iterators - the article on iterators
- basic_json_view::begin - the same iteration on a zero-copy view (in document order, not sorted by key)
Version history
- Added in version 1.0.0.