seo: fix external 4XXs

xquisite0 · xquisite0 · commit cf1c73d038c0 · 2025-08-20T21:34:59.000+08:00
diff --git a/questions/how-do-you-debug-react-applications/en-US.mdx b/questions/how-do-you-debug-react-applications/en-US.mdx
@@ -142,4 +142,4 @@ function MyComponent() {
 - [React Developer Tools](https://react.dev/learn/react-developer-tools)
 - [Error boundaries in React](https://react.dev/reference/react/Component#catching-rendering-errors-with-an-error-boundary)
 - [Using the Chrome DevTools](https://developers.google.com/web/tools/chrome-devtools)
-- [Debugging JavaScript](https://developer.mozilla.org/en-US/docs/Learn/JavaScript/First_steps/Debugging)
+- [JavaScript debugging and error handling](https://developer.mozilla.org/en-US/docs/Learn_web_development/Core/Scripting/Debugging_JavaScript)
diff --git a/questions/what-are-higher-order-components-in-react/en-US.mdx b/questions/what-are-higher-order-components-in-react/en-US.mdx
@@ -83,4 +83,4 @@ In this example, `withExtraProps` is an HOC that adds an `extraProp` to `MyCompo
 ## Further reading
 
 - [Understanding higher order components in React](https://medium.com/@franleplant/react-higher-order-components-in-depth-cf9032ee6c3e)
-- [HOCs vs Render Props vs Hooks](https://blog.logrocket.com/hooks-vs-render-props-vs-hocs/)
+- [HOCs vs Render Props vs Hooks](https://gist.github.com/bradwestfall/4fa683c8f4fcd781a38a8d623bec20e7)
diff --git a/questions/what-are-react-fragments-used-for/en-US.mdx b/questions/what-are-react-fragments-used-for/en-US.mdx
@@ -78,5 +78,3 @@ return (
 ## Further reading
 
 - [React Fragments - Official Documentation](https://react.dev/reference/react/Fragment)
-- [React Fragments - A Complete Guide](https://www.freecodecamp.org/news/react-fragments-complete-guide/)
-- [When to use React Fragments](https://blog.logrocket.com/when-to-use-react-fragments/)
diff --git a/questions/what-are-react-portals-used-for/en-US.mdx b/questions/what-are-react-portals-used-for/en-US.mdx
@@ -93,5 +93,4 @@ ReactDOM.createPortal(child, container);
 ## Further reading
 
 - [React createPortal documentation](https://react.dev/reference/react-dom/createPortal)
-- [Building a modal with React Portals](https://blog.logrocket.com/building-a-modal-with-react-portals/)
-- [Using React Portals for better accessibility](https://www.smashingmagazine.com/2020/03/react-portals-accessibility/)
+- [Building a modal in React with React Portals](https://blog.logrocket.com/build-modal-with-react-portals/)
diff --git a/questions/what-is-jsx-and-how-does-it-work/en-US.mdx b/questions/what-is-jsx-and-how-does-it-work/en-US.mdx
@@ -69,4 +69,3 @@ By default, React DOM escapes any values embedded in JSX before rendering them.
 
 - [React JSX documentation](https://react.dev/learn/writing-markup-with-jsx)
 - [Babel](https://babeljs.io/)
-- [MDN Web Docs on JSX](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/JSX)
diff --git a/questions/what-is-react-suspense-and-what-does-it-enable/en-US.mdx b/questions/what-is-react-suspense-and-what-does-it-enable/en-US.mdx
@@ -87,4 +87,4 @@ In this example, `react-query` is used to fetch data, and `Suspense` provides a
 - [React Suspense documentation](https://react.dev/reference/react/Suspense)
 - [React.lazy documentation](https://react.dev/reference/react/lazy)
 - [React Query documentation](https://react-query.tanstack.com/)
-- [Relay documentation](https://relay.dev/docs/en/experimental/api-reference#suspense)
+- [Relay documentation](https://relay.dev/docs/next/guides/relay-resolvers/suspense/)
diff --git a/questions/what-is-the-usereducer-hook-in-react-and-when-should-it-be-used/en-US.mdx b/questions/what-is-the-usereducer-hook-in-react-and-when-should-it-be-used/en-US.mdx
@@ -90,4 +90,3 @@ export default Counter;
 
 - [React documentation on `useReducer`](https://react.dev/reference/react/useReducer)
 - [Using the `useReducer` hook](https://react.dev/learn/scaling-up-with-reducer-and-context)
-- [A complete guide to `useReducer`](https://www.smashingmagazine.com/2020/06/redux-patterns-use-reducer-react/)
diff --git a/questions/what-is-the-useref-hook-in-react-and-when-should-it-be-used/en-US.mdx b/questions/what-is-the-useref-hook-in-react-and-when-should-it-be-used/en-US.mdx
@@ -108,4 +108,3 @@ In this example, `prevCountRef` is used to keep a reference to the previous valu
 
 - [React documentation on `useRef`](https://react.dev/reference/react/useRef)
 - [Using the `useRef` hook](https://react.dev/learn/manipulating-the-dom-with-refs)
-- [Common use cases for `useRef`](https://blog.logrocket.com/how-to-use-react-useref-hook/)

Original file line number	Diff line number	Diff line change
`@@ -69,4 +69,3 @@ By default, React DOM escapes any values embedded in JSX before rendering them.`
`69`	`69`
`70`	`70`	`- [React JSX documentation](https://react.dev/learn/writing-markup-with-jsx)`
`71`	`71`	`- [Babel](https://babeljs.io/)`
`72`		`-- [MDN Web Docs on JSX](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/JSX)`
Original file line number	Diff line number	Diff line change
`@@ -90,4 +90,3 @@ export default Counter;`
`90`	`90`
`91`	`91`	- [React documentation on `useReducer`](https://react.dev/reference/react/useReducer)
`92`	`92`	- [Using the `useReducer` hook](https://react.dev/learn/scaling-up-with-reducer-and-context)
`93`		-- [A complete guide to `useReducer`](https://www.smashingmagazine.com/2020/06/redux-patterns-use-reducer-react/)
Original file line number	Diff line number	Diff line change
@@ -108,4 +108,3 @@ In this example, `prevCountRef` is used to keep a reference to the previous valu
`108`	`108`
`109`	`109`	- [React documentation on `useRef`](https://react.dev/reference/react/useRef)
`110`	`110`	- [Using the `useRef` hook](https://react.dev/learn/manipulating-the-dom-with-refs)
`111`		-- [Common use cases for `useRef`](https://blog.logrocket.com/how-to-use-react-useref-hook/)