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2
Why does this error on me? [pcall]
I was looking through the function dump page, and saw pcall. When I tried testing it as so, I get
'Baseplate' is not a valid member of Workspace
Don't think I'm misspelling anything wrong.
When I put in BasePlate, it prints yes
I'm trying to test the condition with an object that doesn't exist
oExists = function(thing)
local success,msg = pcall(function() return thing ~= nil end)
if success then
return true
end
return false
end
print(oExists(workspace["Baseplate"]) and "yes" or "no")
0
pcall is almost never the answer. In particular, just reading this code, the function `pcall` is given can't ever error. BlueTaslem 18071 — 9y
1 answer
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2
The problem is this part:
workspace["Baseplate"]
If there is no object named "Baseplate" in Workspace, that statement will error, as you are attempting to reference a nil value outside of the protected call. To make this function work as you would like it to, you could do something like this:
local oExists = function(directory, thing) local success = pcall(function() return not not directory[thing] end) return success end print(oExists(workspace, "Baseplate") and "yes" or "no")
But honestly, you could just use directory:FindFirstChild(string object_name), which is much easier.