json/docs/examples/operator_array__size_type.cpp

26 lines
483 B
C++

#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// create a JSON array
json array = {1, 2, 3, 4, 5};
// output element at index 3 (fourth element)
std::cout << array[3] << '\n';
// change last element to 6
array[array.size() - 1] = 6;
// output changed array
std::cout << array << '\n';
// write beyond array limit
array[10] = 11;
// output changed array
std::cout << array << '\n';
}