In fact, $$phase IS a property of the $rootScope object.
You can access it in child scopes since they prototypically inherit from
the rootScope.
If you try to access it on isolated scope (like a directive with scope:
{}), you will get "undefined".
On Sunday, March 16, 2014 5:35:27 PM UTC+4, Zizon Qiu wrote:
>
> hi,
> Recently,I come across the well known error:
>
>>
>> Error: [$rootScope:inprog] $digest already in progress'
>
>
>
> With some source reading,It seems that,$rootScope.$$phase is the direct
> cause.
>
> $$phase can be found at every Scope object,but only referenced/accessed
> by $rootScope.
>
> So,I wonder why this singular property be presented in every Scope object
> but not private to $rootScope?
>
> If $$phase is set in per-scope way,not stick to $rootScope,in my case the
> error mentioned above can be avoid.
> although,it do can be `avoid` in some other way.
>
> but,what I asking,is not how to avoid it,but why $$phase designed this
> way(not private to $rootScope)?
>
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