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Method parameter - optional but not nullable

From: Huang, Deqing <deqing.huang@intel.com>
Date: Wed, 18 Dec 2013 10:03:25 +0000
To: "public-sysapps@w3.org" <public-sysapps@w3.org>, Christophe Dumez <ch.dumez@sta.samsung.com>
Message-ID: <B35B9DE5A1BEDC4CAA7DF89D69DF3C3810CD26CC@SHSMSX104.ccr.corp.intel.com>
Hi,

In Contacts Manager API spec, parameter "option" of find() is optional but not nullable:
http://www.w3.org/2012/sysapps/contacts-manager-api/#widl-ContactsManager-find-Promise-ContactFindOptions-options 

What does that mean? Is there any difference between optional and nullable?

Thanks in advance.

Regards,
Deqing
Received on Wednesday, 18 December 2013 10:03:56 UTC

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