You are working on a React project and receive feedback about performance issues. You decide to profile the app. While analyzing the flame graph in React DevTools, you notice wide bars. What do these wide bars generally indicate?

  • Asynchronous rendering in React.
  • Blocked JavaScript execution.
  • Deep component nesting.
  • Frequent component re-renders.
Wide bars in a flame graph within React DevTools generally indicate frequent component re-renders. This means that certain components are being re-rendered often, which can lead to performance issues. It's essential to identify and address the causes of frequent re-renders to improve the app's performance.
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