Document window.ng, ng.coreTokens, and ng.probe()

[epelc]

I'm submitting a...

[ ] Regression (a behavior that used to work and stopped working in a new release)
[ ] Bug report  
[ ] Performance issue
[ ] Feature request
[x] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead see https://github.com/angular/angular/blob/master/CONTRIBUTING.md#question
[ ] Other... Please describe:

Current behavior

window.ng is not documented and contains a few items.

ng.probe() some sort of component debugging?
ng.coreTokens contains appref, router, etc but they are just the classes instead of instances? Does this work with ng.probe somehow?

It is used for some debugging purposes and referenced by the augury docs.

https://augury.rangle.io/pages/guides/architecture.html

Environment

Angular version: 7.0.0

[lukaszprus]

Why is it not documented yet? What's the best source of information for all that ng. stuff?

[JoostK]

The ng namespace no longer includes coreTokens and probe in Ivy; all other methods that are available on ng are documented here.

[JoostK]

@aikidave I think it would be nice to have a link to this reference page from somewhere in the docs (it's currently only reachable from the API reference) but I can't quite find a good spot for it. Do you have suggestions for where to add this link?

[aikithoughts]

Would this topic be an appropriate location: https://angular.io/guide/testing-utility-apis?

[angular-robot]

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.

[angular-robot]

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.

[mgechev]

Our official recommendation is Angular DevTools https://angular.io/devtools. Let's keep this outside of the scope of the project for now.

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