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