NiFi Ingest 26.3
NiFi Ingest

# countField

The `countField` method returns the number of fields with the specified name.

## Syntax

    countField( fieldname [, case] )

## Arguments

Argument | Description
--- | ---
`fieldname` | (string) The name of the field to count.
`case` | (boolean) A boolean that specifies whether `fieldname` is case sensitive. The field name is case sensitive by default (`true`).

## Returns

(Number) The number of fields with the specified name.

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Version 26.3 | Last updated July 2026

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Product: Knowledge Discovery NiFi Ingest 26.3

Topic Title: countField