[babel__traverse] Add new method hasNode() to NodePath

[danez]

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• Provide a URL to documentation or source code which provides context for the suggested changes: Add new method to check if node is null or not babel/babel#13940
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Some prettier style changes also sneaked in 😊

[typescript-bot]

@danez Thank you for submitting this PR!

This is a live comment which I will keep updated.

1 package in this PR

• babel__traverse — on npm, on unpkg (author is owner)

Code Reviews

Because you edited one package and updated the tests (👏), I can help you merge this PR once someone else signs off on it.

You can test the changes of this PR in the Playground.

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• ✅ Continuous integration tests have passed
• ✅ Most recent commit is approved by type definition owners or DT maintainers

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---

Diagnostic Information: What the bot saw about this PR

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[typescript-bot]

🔔 @yortus @marvinhagemeister @rpetrich @mgroenhoff @dlgrit @ifiokjr @ExE-Boss — please review this PR in the next few days. Be sure to explicitly select Approve or Request Changes in the GitHub UI so I know what's going on.

[amcasey]

LGTM, but I'd like to hear from an owner.

[typescript-bot]

Re-ping @yortus, @marvinhagemeister, @rpetrich, @mgroenhoff, @dlgrit, @ifiokjr, @ExE-Boss:

This PR has been out for over a week, yet I haven't seen any reviews.

Could someone please give it some attention? Thanks!

[typescript-bot]

It has been more than two weeks and this PR still has no reviews.

I'll bump it to the DT maintainer queue. Thank you for your patience, @danez.

(Ping @yortus, @marvinhagemeister, @rpetrich, @mgroenhoff, @dlgrit, @ifiokjr, @ExE-Boss.)

[jakebailey]

Type annotation matches that in the linked PR (though I do wonder why the project doesn't ship types if upstream is TS already, oh well).

[typescript-bot]

@danez: Everything looks good here. I am ready to merge this PR (at 52768e2) on your behalf whenever you think it's ready.

If you'd like that to happen, please post a comment saying:

Ready to merge

and I'll merge this PR almost instantly. Thanks for helping out! ❤️

(@yortus, @marvinhagemeister, @rpetrich, @mgroenhoff, @dlgrit, @ifiokjr, @ExE-Boss: you can do this too.)

[danez]

Ready to merge