[#BloombergLP-bdljsn-Json-insert-00]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdljsn.adoc[bdljsn]::xref:BloombergLP/bdljsn/Json.adoc[Json]::insert
:relfileprefix: ../../../
:mrdocs:

Insert into the `JsonArray` held by this object at the specified `index` the specified move‐insertable `json`, and return an iterator referring to the newly inserted element. `json` is left in a valid but unspecified state. If `isNull()`, then the type is changed to array and `index` must be `0`. If an exception is thrown, `*this` is unaffected. Throw `bsl::length_error` if `size() == maxSize()`. The (template parameter) type `t_INDEX` must be a non‐`bool` integral type. The behavior is undefined unless `isArray()` or `isNull()`, and unless `index` is in the range `[0 .. size()]`.

== Synopsis

Declared in `<bdljsn_json.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_INDEX>
xref:BloombergLP/bdljsn/JsonArray/Iterator-0d.adoc[JsonArray::Iterator]
insert(
    t_INDEX index,
    xref:BloombergLP/bslmf/MovableRef.adoc[bslmf::MovableRef<Json>] json)
requires bsl::is_integral<t_INDEX>::value
                        && !bsl::is_same<t_INDEX, bool>::value;
----


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