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Aliases

  • debug.isvalidlevel
  • validlevel
  • isvalidlevel

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Arguments

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number
required
The stack-frame level to inspect. See this function’s frame-numbering rules below.
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thread
The coroutine whose environment, script association, or stack is inspected.

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Returns

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boolean
Whether the queried condition holds.
Tests level >= 0 and level < stacksize. Does not guarantee that a different debug API will accept that frame or that it is a Lua closure. Related types: Debug types & behavior.

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Example