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963 markdown files reformatted with the repository's pinned prettier so pnpm format:check covers the folded tree like every other repo file. The formatter's embedded-language pass also normalized code fences (TS semicolons, closed HTML tags in examples, lowercased CSS hex colors, one renumbered list that skipped an index). Alphanumeric token deltas vs the fold commit were audited file-by-file; all are formatter-equivalent markup normalizations plus the four sanitized skills.
958 B
958 B
title, impact, impactDescription, tags
| title | impact | impactDescription | tags |
|---|---|---|---|
| React 19 API Changes | MEDIUM | cleaner component definitions and context usage | react19, refs, context, hooks |
React 19 API Changes
⚠️ React 19+ only. Skip this if you're on React 18 or earlier.
In React 19, ref is now a regular prop (no forwardRef wrapper needed), and use() replaces useContext().
Incorrect (forwardRef in React 19):
const ComposerInput = forwardRef<TextInput, Props>((props, ref) => {
return <TextInput ref={ref} {...props} />;
});
Correct (ref as a regular prop):
function ComposerInput({ ref, ...props }: Props & { ref?: React.Ref<TextInput> }) {
return <TextInput ref={ref} {...props} />;
}
Incorrect (useContext in React 19):
const value = useContext(MyContext);
Correct (use instead of useContext):
const value = use(MyContext);
use() can also be called conditionally, unlike useContext().