[#BloombergLP-baljsn-Formatter-openArray]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/baljsn.adoc[baljsn]::xref:BloombergLP/baljsn/Formatter.adoc[Formatter]::openArray
:relfileprefix: ../../../
:mrdocs:

Print onto the stream supplied at construction the sequence of characters designating the start of an array (referred to as an "array" in JSON). Optionally specify `formatAsEmptyArray` denoting if the array being opened should be formatted as an empty array. If `formatAsEmptyArray` is not specified then the array being opened is formatted as an array having elements. Note that the formatting (and as a consequence the `formatAsEmptyArray`) is relevant only if this formatter encodes in the pretty style and is ignored otherwise.

== Synopsis

Declared in `<baljsn_formatter.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
openArray(bool formatAsEmptyArray = false);
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