[Haskell-beginners] Can fields in a record be optional?

[Mats Rauhala]

On 18:18 Sun 17 Jul     , David Place wrote:
> The way I often do this is to create an "ur" instance where all the fields have default values.  Then to create an instance, I just do a "record update" of this instance.  For example:
> 
> urContract = Contract { currency = undefined, payments = undefined, contracts = [] }

Out of curiosity, what's the etymology for your 'ur'?

-- 
Mats Rauhala
MasseR
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