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1. jotatoledo

   changed the title [-]feat(common): support generics in NgIf context[/-] [+]Support generics in NgIf context[/+] on Nov 23, 2018
2. jasonaden

   added

   area: commonIssues related to APIs in the @angular/common packageIssues related to APIs in the @angular/common package

   on Nov 26, 2018
3. ngbot

   added this to the needsTriage milestone on Nov 26, 2018
4. sod commented on Jan 18, 2019

   

   sod

   on Jan 18, 2019

   Last edited by sod

   Contributor

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   In the meantime if you want typechecking by angular you can stop using *ngIf="... as x" syntax and use a sideeffect instead. Not very elegant, but at least type safe and checked by AngularCompilerPlugin and ngc.

   as x syntax, value is type any

   export interface MyModel {
       baz: number;
   }
   
   @Component({
       selector: 'foo',
       template: `<div *ngIf="stream$|async as stream">{{ stream.bar }}</div>`
   })
   class FooComponent {
       stream$ = of<MyModel>({baz: 1});
   }
   
   // no error reported, `stream` is `any`

   sideeffect, value is type MyModel

   export interface MyModel {
       baz: number;
   }
   
   @Component({
       selector: 'foo',
       template: `<div *ngIf="stream$|async">{{ stream?.bar }}</div>`
   })
   export class FooComponent {
       stream$ = of<MyModel>({baz: 1}).pipe(tap((value) => this.stream = value));
       stream?: MyModel;
   }
   
   // Error: foo-component.ts.FooComponent.html(9,34): : Property 'bar' does not exist on type 'ProductListView'. Did you mean 'baz'?
5. matsko

   added

   freq1: low

   featureLabel used to distinguish feature request from other issuesLabel used to distinguish feature request from other issues

   on Apr 25, 2019
6. ngbot

   modified the milestones: needsTriage, Backlog on Apr 25, 2019
7. sod commented on Oct 19, 2019

   

   sod

   on Oct 19, 2019

   Contributor

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   This may come with angular9. Was this fixed by #33016?
8. angular-robot

   added

   votes required

   on Jun 4, 2021
9. angular-robot commented on Jun 4, 2021

   

   angular-robotBot

   on Jun 4, 2021

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   Just a heads up that we kicked off a community voting process for your feature request. There are 20 days until the voting process ends.

   Find more details about Angular's feature request process in our documentation.
10. angular-robot commented on Jun 27, 2021

    

    angular-robotBot

    on Jun 27, 2021

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    Thank you for submitting your feature request! Looks like during the polling process it didn't collect a sufficient number of votes to move to the next stage.

    We want to keep Angular rich and ergonomic and at the same time be mindful about its scope and learning journey. If you think your request could live outside Angular's scope, we'd encourage you to collaborate with the community on publishing it as an open source package.

    You can find more details about the feature request process in our documentation.
11. angular-robot

    added

    insufficient votes

    on Jun 27, 2021
12. alxhub commented on Jul 17, 2021

    

    alxhub

    on Jul 17, 2021

    Member

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    This has been implemented!
13. alxhub

    closed this as completedon Jul 17, 2021
14. angular-automatic-lock-bot commented on Aug 17, 2021

    

    angular-automatic-lock-botBot

    on Aug 17, 2021

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    This issue has been automatically locked due to inactivity.
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15. angular-automatic-lock-bot

    locked and limited conversation to collaborators on Aug 17, 2021