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@@ -25,13 +25,52 @@ Constant.
The following code exemplifies `is_binary()` for all JSON types.
```cpp
--8<-- "examples/is_binary.cpp"
#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// create JSON values
json j_null;
json j_boolean = true;
json j_number_integer = 17;
json j_number_unsigned_integer = 12345678987654321u;
json j_number_float = 23.42;
json j_object = {{"one", 1}, {"two", 2}};
json j_array = {1, 2, 4, 8, 16};
json j_string = "Hello, world";
json j_binary = json::binary({1, 2, 3});
// call is_binary()
std::cout << std::boolalpha;
std::cout << j_null.is_binary() << '\n';
std::cout << j_boolean.is_binary() << '\n';
std::cout << j_number_integer.is_binary() << '\n';
std::cout << j_number_unsigned_integer.is_binary() << '\n';
std::cout << j_number_float.is_binary() << '\n';
std::cout << j_object.is_binary() << '\n';
std::cout << j_array.is_binary() << '\n';
std::cout << j_string.is_binary() << '\n';
std::cout << j_binary.is_binary() << '\n';
}
```
Output:
```json
--8<-- "examples/is_binary.output"
false
false
false
false
false
false
false
false
true
```
## See also