Expose scrollspy from the documentation

[Airblader]

Please describe the feature you would like to request.

The docs website implements a scrollspy so that the currently in-view fragment of a page can be highlighted. However, this infrastructure currently actually lives in angular/angular: https://github.com/angular/angular/blob/master/aio/src/app/shared/scroll-spy.service.ts.

What is the use-case or motivation for this proposal?

If this was exposed, we could all use it – for the same usecase as in the website. :-)

Is there anything else we should know?

[jelbourn]

I could see the value in having something similar live in the cdk/scrolling package. That said, this would be near the bottom of the list in terms of priorities.

[angular-robot[bot]]

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.

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[angular-robot[bot]]

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.

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[TheJLifeX]

Hi everybody, concerning this issue, you could have a look at NgxScrollSpy. An open source library for scroll spy in Angular.