[#BloombergLP-bdljsn-Json-operator_subs-0f]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdljsn.adoc[bdljsn]::xref:BloombergLP/bdljsn/Json.adoc[Json]::operator[]
:relfileprefix: ../../../
:mrdocs:

Subscript operators

== Synopses

Declared in `<bdljsn_json.h>`

Return a modifiable reference to the held array element at `index`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdljsn/Json.adoc[Json]&
xref:BloombergLP/bdljsn/Json/operator_subs-03.adoc[operator[]](std::size_t index);
----

[.small]#xref:BloombergLP/bdljsn/Json/operator_subs-03.adoc[_» more..._]#

Return a non‐modifiable reference to the held array element at `index`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdljsn/Json.adoc[Json] const&
xref:BloombergLP/bdljsn/Json/operator_subs-04.adoc[operator[]](std::size_t index) const;
----

[.small]#xref:BloombergLP/bdljsn/Json/operator_subs-04.adoc[_» more..._]#

Return a modifiable reference to the held object's member for `key`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdljsn/Json.adoc[Json]&
xref:BloombergLP/bdljsn/Json/operator_subs-07.adoc[operator[]](std::string_view const& key);
----

[.small]#xref:BloombergLP/bdljsn/Json/operator_subs-07.adoc[_» more..._]#

Return a non‐modifiable reference to the held object's member for `key`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdljsn/Json.adoc[Json] const&
xref:BloombergLP/bdljsn/Json/operator_subs-0b.adoc[operator[]](std::string_view const& key) const;
----

[.small]#xref:BloombergLP/bdljsn/Json/operator_subs-0b.adoc[_» more..._]#

== Return Value

* modifiable reference to the held array element at `index`
* a non‐modifiable reference to the element at the specified position
* modifiable reference to the held object's member for `key`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *index*
| zero‐based element position
| *key*
| UTF‐8 member name
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#