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 fieldnameargument is case sensitive. The argument is case sensitive by default (true). | 
Returns
(Boolean). A Boolean specifying if the sub field exists or not.