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# 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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