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How do I check if an instance has a certain property?
Title says it all
To explain:
local property = "Name"; -- Name is a property every instance has.
for i,v in next, workspace:GetChildren() do
if (v[property]) then
print("found: "..tostring(v)..";\n property: "..tostring(property));
end
end
The above doesn't error because every instance in workspace has a property "Name"...
However:
Instance.new("StringValue", workspace);
local property = "Value"; -- Not every instance has this property
for i,v in next, workspace:GetChildren() do
if (v[property]) then
print("found: "..tostring(v)..";\n property: "..tostring(property));
end
end
The above errors saying that "Value" is not a valid property of camera? Why does it error? I clearly state that IF the instance has a property of "Value", then to print. It completely ignores it.
0
Man, the way you're using lua...it looks like another language. This is totally beyond me. yoshiegg6 176 — 9y
1 answer
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0
I'm not certain why that would be erroring, but you can use pcall to catch any invalid accesses:
for i, v in next, workspace:GetChildren() do
if pcall(function() v[property] end) then
print("found: " .. tostring(v) .. ";\n property: " .. tostring(property));
end
end
0
I realised that, thanks anyway! Vlatkovski 320 — 9y