constexpr bool is_binary() const noexcept;
This function returns #!cpp true
if and only if the JSON value is binary array.
#!cpp true
if type is binary, #!cpp false
otherwise.
No-throw guarantee: this member function never throws exceptions.
Constant.
??? example
The following code exemplifies `is_binary()` for all JSON types. ```cpp --8<-- "examples/is_binary.cpp" ``` Output: ```json --8<-- "examples/is_binary.output" ```