Top platform issues

@ngrx/effects fires same request twice

createFeatureSelector expects 1 type argument, documentation and example app show 2.

[Feature Request] Implement aggregate operator for aggregator pattern

Question: Example-app, why extend the root state?

Example app does not compile

@ngrx/router-store triggers unexpected ROUTER_CANCEL action if store is modified by guard .

Needs Reproduction Router Store bug

store,select("state").subscribe() return undefined subscription

ng serve failed \platform\example-app\@ngrx\store.ts doesn't exist

In examples is there a reason to using object to store entities v's Map?

State snapshot