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Replaces one constant in a Lua function or stack level by one-based index. Invalid stack levels raise “Level out of range”, non-Lua functions raise “Lua function expected”, indexes below 1 raise “Constant index starts at 1”, and indexes past the available constants raise “Constant index out of range”. debug.setconstant is an alias.
setconstant(target: function | number, index: number, value: any)
debug.setconstantlocal function target()
return "before"
end
print(getconstant(target, 1))
setconstant(target, 1, "after")
print(getconstant(target, 1))
debug.setconstant(target, 1, "done")
print(getconstant(target, 1))