Re: Object copy
Thanks for your answers. Object.assign seems good but provides only copy for enumerable properties, not a real deep clone. I know for jquery, that's why i precised only for DOM but it was just to show the syntax :) 2014-06-11 0:00 GMT+02:00 Rick Waldron waldron.r...@gmail.com: On Tue, Jun 10, 2014 at 12:32 PM, Maxime Warnier mar...@gmail.com wrote: Hi All Do you know if it is planned or maybe in discussion for ES7 to have a simple clone system on objects ? There are different notations, from : - jquery Object.clone( [withDataAndEvents ] [, deepWithDataAndEvents ] ) jQuery doesn't clone objects, it clones DOM elements. Rick -- Maxime ___ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
Re: Object copy
Hi Maxime, Good to see you here :-) This topic has been discussed recently on Twitter. See https://twitter.com/jeremyckahn/status/474259042005553154 I'm like Rick's answer in particular https://twitter.com/rwaldron/status/475017360085364736 as I believe a large share of cloning is just about data As discussed in this Twitter thread, immutable data structures would be an interesting idea too. If an object is guaranteed to be deeply immutable, then, it can be passed around without the need for cloning. Clones are only necessary because the initial object is mutable in the first place. Immutable data structures have been briefly discussed here recently: https://mail.mozilla.org/pipermail/es-discuss/2014-June/037429.html (see replies too) David Le 11/06/2014 08:49, Maxime Warnier a écrit : Thanks for your answers. Object.assign seems good but provides only copy for enumerable properties, not a real deep clone. I know for jquery, that's why i precised only for DOM but it was just to show the syntax :) 2014-06-11 0:00 GMT+02:00 Rick Waldron waldron.r...@gmail.com: On Tue, Jun 10, 2014 at 12:32 PM, Maxime Warnier mar...@gmail.com wrote: Hi All Do you know if it is planned or maybe in discussion for ES7 to have a simple clone system on objects ? There are different notations, from : - jquery Object.clone( [withDataAndEvents ] [, deepWithDataAndEvents ] ) jQuery doesn't clone objects, it clones DOM elements. Rick ___ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
Re: Object copy
Hi David :) thanks for the links ! You are right, it's generally about data. Serialize an object to JSON prevent from sharing references. On the twitter feed Jeremy talks about optimizing the process . I'm agree with that, for performance and a nicer syntax. By the way, the Object.deepFreeze is really interesting , especially for an API and when you want to set some private properties . But I think it is a workaround to the issue of cloning because you can't freeze all objects and maybe you want to have a mutable object but cloning it afterward. 2014-06-11 9:58 GMT+02:00 David Bruant bruan...@gmail.com: Hi Maxime, Good to see you here :-) This topic has been discussed recently on Twitter. See https://twitter.com/jeremyckahn/status/474259042005553154 I'm like Rick's answer in particular https://twitter.com/rwaldron/status/475017360085364736 as I believe a large share of cloning is just about data As discussed in this Twitter thread, immutable data structures would be an interesting idea too. If an object is guaranteed to be deeply immutable, then, it can be passed around without the need for cloning. Clones are only necessary because the initial object is mutable in the first place. Immutable data structures have been briefly discussed here recently: https://mail.mozilla.org/pipermail/es-discuss/2014-June/037429.html (see replies too) David Le 11/06/2014 08:49, Maxime Warnier a écrit : Thanks for your answers. Object.assign seems good but provides only copy for enumerable properties, not a real deep clone. I know for jquery, that's why i precised only for DOM but it was just to show the syntax :) 2014-06-11 0:00 GMT+02:00 Rick Waldron waldron.r...@gmail.com: On Tue, Jun 10, 2014 at 12:32 PM, Maxime Warnier mar...@gmail.com wrote: Hi All Do you know if it is planned or maybe in discussion for ES7 to have a simple clone system on objects ? There are different notations, from : - jquery Object.clone( [withDataAndEvents ] [, deepWithDataAndEvents ] ) jQuery doesn't clone objects, it clones DOM elements. Rick -- Maxime WARNIER ___ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
Re: Object copy
On Wednesday, June 11, 2014, Maxime Warnier mar...@gmail.com wrote: Thanks for your answers. Object.assign seems good but provides only copy for enumerable properties, not a real deep clone. I know for jquery, that's why i precised only for DOM but it was just to show the syntax :) Oops, sorry, I overlooked that. Rick 2014-06-11 0:00 GMT+02:00 Rick Waldron waldron.r...@gmail.com javascript:;: On Tue, Jun 10, 2014 at 12:32 PM, Maxime Warnier mar...@gmail.com javascript:; wrote: Hi All Do you know if it is planned or maybe in discussion for ES7 to have a simple clone system on objects ? There are different notations, from : - jquery Object.clone( [withDataAndEvents ] [, deepWithDataAndEvents ] ) jQuery doesn't clone objects, it clones DOM elements. Rick -- Maxime ___ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
Object copy
Hi All Do you know if it is planned or maybe in discussion for ES7 to have a simple clone system on objects ? There are different notations, from : - jquery Object.clone( [withDataAndEvents ] [, deepWithDataAndEvents ] ) ( but only for DOM element ) - underscore _.clone(object) ( return the cloned object ) - angular angular.copy(source, [destination]); (return the object, same as underscore, or copy into an optional destination ) Maybe an Object.copy([options?]) would be interesting ? Maxime Maxime Warnier @maxdow ___ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
Re: Object copy
Object.create() ? It's not exactly cloning, but it'll probably work better than cloning in most cases. 10.06.2014, 20:33, "Maxime Warnier" mar...@gmail.com:Hi All Do you know if it is planned or maybe in discussion for ES7 to have a simple clone system on objects ? There are different notations, from : - jquery Object.clone( [withDataAndEvents ] [, deepWithDataAndEvents ] ) ( but only for DOM element ) - underscore _.clone(object) ( return the cloned object ) - angular angular.copy(source, [destination]); (return the object, same as underscore, or copy into an optional destination ) Maybe an Object.copy([options?]) would be interesting ?Maxime Maxime Warnier@maxdow,___es-discuss mailing listes-discuss@mozilla.orghttps://mail.mozilla.org/listinfo/es-discuss___ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
Re: Object copy
And maybe there should be a Object.move for value types...
From: Frankie Bagnardi f.bagna...@gmail.commailto:f.bagna...@gmail.com
Date: Tuesday, June 10, 2014 at 2:47 PM
To: Alex Kocharin a...@kocharin.rumailto:a...@kocharin.ru
Cc: es-discuss@mozilla.orgmailto:es-discuss@mozilla.org
es-discuss@mozilla.orgmailto:es-discuss@mozilla.org
Subject: Re: Object copy
I'd like Object.merge(source, dest), and Object.clone(source).
Object.clone would be best if it cloned almost any object, like more advanced
clone functions. This includes plain objects, arrays, instances of classes
(preserving base class, etc.), regExp, promise, and ideally DOM nodes in
browsers (along with anything else that can be cloned). If something can't be
cloned, including primitives and functions, it should throw an error.
Object.merge would be a much simpler copy enumerable own properties function.
Object.merge({a: 1}, {}); and Object.clone({a: 1}); would be equivalent, but
they differ in most other cases.
On Tue, Jun 10, 2014 at 10:38 AM, Alex Kocharin
a...@kocharin.rumailto:a...@kocharin.ru wrote:
Object.create() ?
It's not exactly cloning, but it'll probably work better than cloning in most
cases.
10.06.2014, 20:33, Maxime Warnier mar...@gmail.commailto:mar...@gmail.com:
Hi All
Do you know if it is planned or maybe in discussion for ES7 to have a simple
clone system on objects ?
There are different notations, from :
- jquery
Object.clone( [withDataAndEvents ] [, deepWithDataAndEvents ] )
( but only for DOM element )
- underscore
_.clone(object)
( return the cloned object )
- angular
angular.copy(source, [destination]);
(return the object, same as underscore, or copy into an optional destination )
Maybe an Object.copy([options?]) would be interesting ?
Maxime
Maxime Warnier
@maxdow
,
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Re: Object copy
On Tue, Jun 10, 2014 at 2:47 PM, Frankie Bagnardi f.bagna...@gmail.com wrote: I'd like Object.merge(source, dest), and Object.clone(source). `Object.assign` is already in the ES6 spec. --scott ___ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
Re: Object copy
On Tue, Jun 10, 2014 at 12:32 PM, Maxime Warnier mar...@gmail.com wrote: Hi All Do you know if it is planned or maybe in discussion for ES7 to have a simple clone system on objects ? There are different notations, from : - jquery Object.clone( [withDataAndEvents ] [, deepWithDataAndEvents ] ) jQuery doesn't clone objects, it clones DOM elements. Rick ___ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
