type()

template<template< typename U, typename V, typename... Args > class ObjectType = std::map, template< typename U, typename... Args > class ArrayType = std::vector, class StringType = std::string, class BooleanType = bool, class NumberIntegerType = std::int64_t, class NumberUnsignedType = std::uint64_t, class NumberFloatType = double, template< typename U > class AllocatorType = std::allocator, template< typename T, typename SFINAE=void > class JSONSerializer = adl_serializer, class BinaryType = std::vector<std::uint8_t>>

constexpr value_t nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer, BinaryType >::type ( ) const

inlineconstexprnoexcept

return the type of the JSON value (explicit)

Return the type of the JSON value as a value from the value_t enumeration.

Returns

the type of the JSON value

Value type	return value
null	value_t::null
boolean	value_t::boolean
string	value_t::string
number (integer)	value_t::number_integer
number (unsigned integer)	value_t::number_unsigned
number (floating-point)	value_t::number_float
object	value_t::object
array	value_t::array
binary	value_t::binary
discarded	value_t::discarded

@complexity Constant.

@exceptionsafety No-throw guarantee: this member function never throws exceptions.

@liveexample{The following code exemplifies type() for all JSON types.,type}

See also

see operator value_t() – return the type of the JSON value (implicit)

see type_name() – return the type as string

Since

version 1.0.0

Definition at line 20171 of file json.hpp.

    {
        return m_type;
    }