Controller 25.2
Controller Reference

# hasField

The `hasField` method returns a Boolean specifying if the sub field exists.

## Syntax

    hasField( fieldname [, case])

## Arguments

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

## Returns

(Boolean). A Boolean specifying if the sub field exists or not.

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Version 25.2 | Last updated April 2025

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Product: Knowledge Discovery Controller 25.2

Topic Title: hasField