933200 - [Contacts] hasOwnProperty not working properly on mozContact

Status: RESOLVED INVALID

(Core Graveyard :: DOM: Contacts, defect)

Description

[Germán Toro del Valle (:gtorodelvalle)]

contact.hasOwnProperty(attr) is returning false even in the case when contact is a valid mozContact instance and attr is a contact property.

For example:

var contact = new mozContact({name: ["John Doe"], givenName: ["John"], familyName: ["Doe"]});
contact.hasOwnProperty('name'); // false when it should be true.
Array.isArray(contact.name); // true.

Comment 1

[Reuben Morais [:reuben]]

This is per spec, the attributes are on the prototype. Similarly, document.hasOwnProperty('body') returns false, window.hasOwnProperty('onload') returns false, etc.

You can do |"name" in c| or |c.__proto__.hasOwnProperty("name");|.