[#BloombergLP-bdljsn-Json-pushBack-0c4]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdljsn.adoc[bdljsn]::xref:BloombergLP/bdljsn/Json.adoc[Json]::pushBack
:relfileprefix: ../../../
:mrdocs:

Append to the end of this `Json` object's array a copy of the specified `value` and return a non‐`const` reference to this object. If `isNull()`, then type is changed to array. If an exception is thrown, `*this` is unaffected. Throw `bsl::length_error` if `size() == maxSize()`. The behavior is undefined unless `isArray()` or `isNull()`.

== Synopsis

Declared in `<bdljsn_json.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdljsn/Json.adoc[Json]&
pushBack(xref:BloombergLP/bdljsn/JsonNull-0b.adoc[JsonNull] const& value);
----


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