Heartbeat doesn't exist yet still firing

[theVekks (vekks)]

How is this even possible?

[Forummer]

The instance method :Connect() returns an RBXScriptConnection object, the problem is that velCap's reference in the lamba function’s definition is out of scope of its declaration.

local r = game:GetService"RunService"
local c
c = r.Heartbeat:Connect(function()
	print(c)
end)