Widget can't be initialized with an option object that has no hasOwnProperty function

[Christoph Obexer]

Initializing any widget like:

var options = Object.create(null);
options.label = 'Button Label';
$('#button').button(options);

throws an error like:

input[inputIndex].hasOwnProperty is not a function

Runnable example: ​http://jsbin.com/juneboqere/edit?html,js,output Responsible code: ​https://github.com/jquery/jquery-ui/blob/ef2e9bab92ae898311baa295590cd487d9071319/ui/widget.js#L186

jQuery UI must not rely on hasOwnProperty of passed objects, but must instead use Object.prototype.hasOwnProperty to avoid this problem.

jQuery's own extend doesn't have this problem and the code below works:

var options = Object.create(null);
options.label = 'Button Label';
$('#button').button($.extend({}, options));

[Scott González]

​https://github.com/jquery/jquery-ui/pull/1809

[Scott González]

In b3c0a7f:

Widget: Handle Object.create(null) for options objects

Fixes #15179
Closes gh-1809