Script doesnt work as intended

Help and Feedback Scripting Support
1

I am making a damage script for a tornado game, theres a value in every part that has the windspeed need to get picked up, however my damage script does not want to work properly, it checks if the tornado has a greater mph than the windspeed thats needed for the part to be picked up, then it picks it up. but the thing is its not working here, my script checks every part. so if it comes across a part without a value. it breaks. how could i fix this?

while wait(0) do
	local RunService = game:GetService("RunService")
	for i,hit in pairs(game.Workspace:GetDescendants()) do
		if hit:IsA("BasePart") or hit:IsA("WedgePart") then
			if (Vector3.new(script.Parent.Position.X, 0, script.Parent.Position.Z) - Vector3.new(hit.Position.X, 0, hit.Position.Z)).Magnitude <= 271 then

				if hit:WaitForChild("windspeedneeded").Value <= script.Parent.windspeed.Value then
		
				end
			end
		end
	end
end
2

add the guard clause:

if not hit:FindFirstChild(“windspeedneeded”) then continue end

(to check if the value exists)

your new script:

while wait(0) do
	local RunService = game:GetService("RunService")
	for i,hit in pairs(game.Workspace:GetDescendants()) do
		if hit:IsA("BasePart") or hit:IsA("WedgePart") then
			if (Vector3.new(script.Parent.Position.X, 0, script.Parent.Position.Z) - Vector3.new(hit.Position.X, 0, hit.Position.Z)).Magnitude <= 271 then
                if not hit:FindFirstChild("windspeedneeded") then continue end
				if hit:WaitForChild("windspeedneeded").Value <= script.Parent.windspeed.Value then
		
				end
			end
		end
	end
end
3

i never knew that continue existed lol, thank you it works!