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2 :21

	English null: A 11/10000 · 11
3 :22

	English https://en.cppreference.com/w/cpp/utility/variant/monostate[__monostate__] value, equivalent to `nullptr`. 106/10000 · 106
4 :25

	English boolean: A boolean: either `true` or `false`. 49/10000 · 49
5 :27

	English number: An integral or floating point value. 48/10000 · 48
6 :29

	English string: A sequence of zero or more Unicode characters, 58/10000 · 58
7 :30

	English similar to {std_string}. 24/10000 · 24
8 :32

	English array: An ordered list of values, like {std_vector}. 56/10000 · 56
9 :34

	English object: A collection of name/value pairs, also known as an 62/10000 · 62
10 :35

	English https://en.wikipedia.org/wiki/Associative_array[__associative array__]. 71/10000 · 71
11 :37

	English Working With Values 19/10000 · 19
12 :38

	English A <<ref_value>> constructed from `nullptr` or default constructed represents a null JSON element: 97/10000 · 97
13 :46

	English The member function <<ref_value_kind,`value::kind`>> may be used to query the kind stored in the value. Alternatively, member functions like <<ref_value_is_object,`value::is_object`>> <<ref_value_is_number,`value::is_number`>> may be used to check whether or not the value is a particular kind: 294/10000 · 294
14 :57

	English Functions like <<ref_value_if_object,`value::if_object`>> actually return a pointer to the object if the value is an object, otherwise they return null. This allows them to be used both in boolean contexts as above, and in assignments or conditional expressions to capture the value of the pointer: 298/10000 · 298
15 :67

	English After a <<ref_value>> is constructed, its kind can change depending on what is assigned to it, or by calling functions such as <<ref_value_emplace_array,`value::emplace_array`>> or <<ref_value_emplace_bool,`value::emplace_bool`>>. If the assignment is successful, in other words it completes without any exceptions then the value is replaced. Otherwise, the value is unchanged. All operations which can fail to modify a value offer the strong exception safety guarantee. 470/10000 · 470
16 :80

	English The following table shows all of the ways to determine and access the contents of a <<ref_value>>: 98/10000 · 98
17 :83

	English .<<ref_value>> Accessors [%autowidth,cols=8] \|=== \|Kind \|Representation \|Emplacement \|Kind Test \|Pointer Access \|`result` Access \|Checked Access \|Unchecked Access 162/10000 · 162
:95 :95

	English <<ref_kind,`kind::array`>> 26/10000 · 26
:95 :95

	English <<ref_array>> 13/10000 · 13
20 :95

	English <<ref_value_emplace_array>> 27/10000 · 27
21 :95

	English <<ref_value_is_array>> 22/10000 · 22

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