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All topics›JavaScript›Setup & mental model

Fix the temporal dead zone bug

beginnerlayer B1 · Setup & mental model3 tests

greetMember(name) should return a welcome-back message for a known member, or a generic greeting otherwise — but right now, calling it with a name throws instead of returning anything.

  • The bug is a Temporal Dead Zone error: something is read before its own let line has run
  • Don't change what the function returns — only reorder what's already there

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