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FollowAttribute

Tracks attribute changes and propagates updated userdata to states.

TypeSinceScoped
Declaration0.0.3No

Constructor​

[FollowAttribute(AttributeName : string)] = Value

Usage​

Similarly to FollowProperty(), it as a constructor index; declare FollowAttribute() with a string parameter matching the attribute name you want followed, and set the value to the value you want updated.

local NumApples = Value(0)

New(MyObject, {
   [FollowAttribute "Apples"] = NumApples, -- When the "Apples" attribute changes, NumApples updates
})

MyObject:SetAttribute("Apples", 5) -- Updates NumApples to 5 as well

Whenever the attached state changes, the attribute does not change. Instead, the way this works is that the attribute changes get reflected into the state value, meaning that using Instance:SetAttribute() will trigger the change and any reactivity to it.