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Groups > comp.lang.javascript > #32896
| Path | csiph.com!.POSTED.204-73-239-109.cust.centrio.cz!not-for-mail |
|---|---|
| From | Cezary Tomczyk <cezary.tomczyk@gmail.com> |
| Newsgroups | comp.lang.javascript |
| Subject | Re: hasOwnProperty and property className |
| Date | Sat, 1 Apr 2017 15:59:14 +0200 |
| Organization | csiph.com Internet News Service |
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On 01/04/2017 12:17, Evertjan. wrote:
> Cezary Tomczyk <cezary.tomczyk@gmail.com> wrote on 01 Apr 2017 in
> comp.lang.javascript:
>
>> Just out of curiosity.
>>
>> Why document.body.hasOwnProperty('className') returns false?
>>
>> Property className does exists for object document.body object.
>
> hasOwnProperty()
> is about Javascript-objects,
> not about DOM-objects,
> methinks.
>
> var a = []; // an array
> document.write( a.hasOwnProperty('length') ); // true
> document.write( '<br>' );
>
> document.write( document.body.hasOwnProperty('style') ); // false
> document.write( '<br>' );
Thanks.
On MDN
https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty
documentation doesn't mentioned that specifically. Just:
"The hasOwnProperty() method returns a boolean indicating whether the
object has the specified property."
That's why I was asking.
--
Cezary Tomczyk
http://www.ctomczyk.pl/
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hasOwnProperty and property className Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2017-04-01 11:20 +0200
Re: hasOwnProperty and property className "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-04-01 12:17 +0200
Re: hasOwnProperty and property className Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2017-04-01 15:59 +0200
Re: hasOwnProperty and property className "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-04-01 16:40 +0200
Re: hasOwnProperty and property className Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-04-02 00:39 +0200
Re: hasOwnProperty and property className Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-04-01 13:53 +0200
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