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chore(gemini.md): Make the checkExhaustive helper section more brief/direct (#6181)

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Richie Foreman 2025-08-13 18:59:46 -04:00 committed by GitHub
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@ -117,25 +117,12 @@ TypeScript's power lies in its ability to provide static type checking, catching
### Type narrowing `switch` clauses
When authoring a switch clause over an enumeration or fixed list of items,
always prefer to use the `checkExhaustive` helper method within the default
clause of the switch. This will ensure that all of the possible options within
the value or enumeration are used.
Use the `checkExhaustive` helper in the default clause of a switch statement.
This will ensure that all of the possible options within the value or
enumeration are used.
This helper method can be found in `packages/cli/src/utils/checks.ts`
Here's an example of using the helper method properly:
```
switch (someValue) {
case 1:
case 2:
// ...
default:
return checkExhaustive(someValue);
}
```
### Embracing JavaScript's Array Operators
To further enhance code cleanliness and promote safe functional programming practices, leverage JavaScript's rich set of array operators as much as possible. Methods like `.map()`, `.filter()`, `.reduce()`, `.slice()`, `.sort()`, and others are incredibly powerful for transforming and manipulating data collections in an immutable and declarative way.