[pve-devel] [PATCH widget-toolkit 3/3] window: edit: avoid shared object for extra request params

[Thomas Lamprecht]

Am 04/04/2024 um 12:10 schrieb Friedrich Weber:
> Maybe we could do:
> 
> ```js
>     extraRequestParams: {},
> 
>     constructor: function(conf) {
>         let me = this;
> 	me.extraRequestParams = Ext.clone(me.extraRequestParams);
>         me.initConfig(conf);
>         me.callParent();
>     },
> ```
> 
> ... which, if I'm not missing anything, *should* cover everything (with
> the cost of allocating unnecessary empty objects)?
> 


yeah, I just wanted to suggest something like that, albeit I first had the
(a few times used):

me.extraRequestParams = Ext.apply({}, me.extraRequestParams ?? {});

pattern in mind. Mostly an slight performance improvement as we can assume
that this is either undefined or an object, while Ext.clone checks for all
different types (in a legacy browser compat way).

Albeit nowadays one might be even better off to use something like the
spread operator:

me.extraRequestParams = {  ...(me.extraRequestParams ?? {}) };

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_syntax#spread_in_object_literals

Or maybe even nicer, the Object.assign operator, that does not throw if
the sources are null or undefined:

me.extraRequestParams = Object.assign({}, me.extraRequestParams);

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign

But all those are implementation details (of which I probably would prefer
the Object.assign one the most, albeit no hard feelings), in general your
proposed solution seems to be the best one, w.r.t sane new usage and
backward compat.

btw. hasn't the `submitOptions` config object the same issue?