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debug.getupvalue()

debug.getupvalue (f, up)

This function returns the name and the value of the upvalue with index up of the function f. The function returns nil if there is no upvalue with the given index.

Variable names starting with '(' (open parenthesis) represent variables with no known names (variables from chunks saved without debug information).

Links:

https://www.lua.org/manual/5.3/manual.html#pdf-debug.getupvalue

doc_lua

2017-02-21 04:10:43

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