[#BloombergLP-bdljsn-Json-2conversion-01] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdljsn.adoc[bdljsn]::xref:BloombergLP/bdljsn/Json.adoc[Json]::operator bool& :relfileprefix: ../../../ :mrdocs: Return a reference providing modifiable access to the value of type `boolean` held by this object. The behavior is undefined unless `isBoolean()` returns true. == Synopsis Declared in `<bdljsn_json.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- explicit operator bool&(); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#