NiFi Ingest 25.4
NiFi Ingest

# empty

The `empty` method determines whether the JSON object is empty.

## Syntax

    empty()

## Returns

(Boolean). Returns `true` if the object has no attributes (name/value pairs).

## Example

    local myJsonObject = LuaJsonObject:new()
    print(myJsonObject:empty())
    -- true

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Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery NiFi Ingest 25.4

Topic Title: empty