What is React’s StrictMode double-invocation behavior in development and what is its purpose?

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React Developer — Hard

What is React’s StrictMode double-invocation behavior in development and what is its purpose?

Key points

  • StrictMode aims to surface impure functions and side effects
  • Double-invocation behavior helps in catching issues early
  • Calls render, state initializer, and certain hooks twice
  • Enhances code quality by highlighting problematic areas

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