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What are some common performance optimizations in React Native?
To optimize performance in React Native, consider using `React.PureComponent` or `React.memo` to prevent unnecessary re-renders. Optimize list rendering by using `FlatList` with proper keys and implementing `shouldComponentUpdate` to reduce updates. Also, avoid heavy computations on the main thread and use libraries like `react-native-fast-image` for optimized image loading.
To optimize performance in React Native, consider using `React.PureComponent` or `React.memo` to prevent unnecessary re-renders. Optimize list rendering by using `FlatList` with proper keys and implementing `shouldComponentUpdate` to reduce updates. Also, avoid heavy computations on the main thread and use libraries like `react-native-fast-image` for optimized image loading.
What are the best practices for implementing JWT in a web application?
Best practices for implementing JWT in a web application include: 1) Use strong, well-established algorithms for signing the tokens (e.g., RS256). 2) Securely store JWTs on the client side using HTTP-only cookies to protect against XSS attacks. 3) Implement token expiration and renewal policies to limit token lifespan and reduce risk. 4) Validate tokens properly on the server side, including checking claims and verifying signatures. 5) Use HTTPS to secure token transmission and prevent interception. 6) Avoid storing sensitive data directly in JWTs, as they can be decoded by anyone with the token.
Best practices for implementing JWT in a web application include: 1) Use strong, well-established algorithms for signing the tokens (e.g., RS256). 2) Securely store JWTs on the client side using HTTP-only cookies to protect against XSS attacks. 3) Implement token expiration and renewal policies to limit token lifespan and reduce risk. 4) Validate tokens properly on the server side, including checking claims and verifying signatures. 5) Use HTTPS to secure token transmission and prevent interception. 6) Avoid storing sensitive data directly in JWTs, as they can be decoded by anyone with the token.