Writing Blooper in Type Narrowing section of handbook

Open Beginner friendly
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Assessment

Difficulty
1/5
Estimated time
Under an hour
Newbie friendliness
88/100
Issue type
Documentation
Clarity
Clearly specified
Activity status
Quiet
Tech stack
typescript
Domain
documentation

Research direction

Open packages/documentation/copy/en/handbook-v2/Narrowing.md at the linked line around 193 and inspect the sentence in the Type Narrowing section. Correct the writing so the example type-checks, then verify that the revised sentence and example are accurate.

Written by the indexing model from the issue text.

Description

This sentence does not type-check:
https://github.com/microsoft/TypeScript-Website/blob/c8170c35bda4811c9516cbb69c39241ae4beb6d9/packages/documentation/copy/en/handbook-v2/Narrowing.md?plain=1#L193

Dominant language
TypeScript
Stars
2.6k
Forks
1.5k
Avg merge
1d 12h
Merged PRs (30d)
5

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