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29 lines
584 B
C++
29 lines
584 B
C++
#include <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 JSON array
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json array = {"first", "2nd", "third", "fourth"};
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// output element at index 2 (third element)
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std::cout << array.at(2) << '\n';
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// change element at index 1 (second element) to "second"
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array.at(1) = "second";
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// output changed array
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std::cout << array << '\n';
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// try to write beyond the array limit
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try
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{
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array.at(5) = "sixth";
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}
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catch (std::out_of_range& e)
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{
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std::cout << "out of range: " << e.what() << '\n';
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}
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}
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