Function is_string

dependencies/json/json.hpp:19178–19181

! @brief return whether value is a string This function returns true if and only if the JSON value is a string. @return `true` if type is string, `false` otherwise. @complexity Constant. @exceptionsafety No-throw guarantee: this member function never throws exceptions. @liveexample{The following code exemplifies `is_string()` for all JSON types.,is_string}

    @since version 1.0.0
    */
    constexpr bool is_string() const noexcept
    {
        return m_type == value_t::string;
    }

    /*!
    @brief return whether value is a binary array