How to check if something exists?
wait(10)
x=script.Parent[""..script.Parent.Parent.Parent.OwnerName.Value.."'s WarClone"]:clone()
if game.kServerStorage[""..script.Parent.Parent.Parent.OwnerName.Value.."'s Clones"] == nil
then h = Instance.new("Model")
h.Parent = game.kServerStorage
h.Name = ""..script.Parent.Parent.Parent.OwnerName.Value.."'s Clones"
x.Parent = game.kServerStorage[""..script.Parent.Parent.Parent.OwnerName.Value.."'s Clones"]
else x.Parent = game.kServerStorage[""..script.Parent.Parent.Parent.OwnerName.Value.."'s Clones"]
end
kServerStorage is the ServerStorage just renamed...
I cant manage to make it to work, becuase when this script runs, the part that it check for being nil IS nil, how do I check if it is 'there', because whenever I check if it is 'there' it says in the output 'error stuffs... this thingy doesn't exist!'
So how do I check if it exists? I thought it was something like:
if game.kServerStorage[""..script.Parent.Parent.Parent.OwnerName.Value.."'s Clones"] == nil
By the way, the problem is with this part ^
Please help, thanks!
1 answer
If try something like
if workspace.Part == nil then
... that won't work. Instead of getting nil, an error will happen ("no such property 'Part' in Workspace") and it won't even get to checking your if. So we can't use . (or equivalently []) to check if an object exists.
Instead, you can use :FindFirstChild, which just returns nil if the thing doesn't exist:
if workspace:FindFirstChild("Part") == nil then
It's fairly idiomatic in Lua to use drop == nil or ~= nil when it's superfluous. To see if something is not nil, you would use not:
if not workspace:FindFirstChild("Part") then
You can read that as "if I don't find 'Part' in workspace", or "if 'Part' doesn't exist in workspace".
I would really recommend not using the "Name's Clones" format, since it's so much more complicated than necessary. Instead, I would suggest having a "Clones" folder in the ServerStorage and referencing ServerStorage.Clone[name].
I would also highly recommend script.Parent.Parent.Parent to a variable instead of repeating it all over the place. Possibly saving script.Parent.Parent.Parent.OwnerValue to a variable, too.
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