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Fix satisfies example in docs #2955

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Fix satisfies example in docs #2955

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Updated code example for satisfies keyword because the example did no…
Oct 18, 2023
31fc178
Simplified changes
Oct 18, 2023
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3 changes: 2 additions & 1 deletion packages/documentation/copy/en/release-notes/TypeScript 4.9.md
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Original file line number Diff line number Diff line change
Expand Up @@ -42,8 +42,9 @@ const palette: Record<Colors, string | RGB> = {
// ~~~~ The typo is now correctly detected
};

// But we now have an undesirable error here - 'palette.red' "could" be a string.
const redComponent = palette.red.at(0);
// But we now have an undesirable error here - 'palette.green' "could" be an array.
const greenNormalized = palette.green.toUpperCase();
```

The new `satisfies` operator lets us validate that the type of an expression matches some type, without changing the resulting type of that expression.
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