Disable automatically re-calculation.
Enable automatically re-calculation.
Enable automatically re-calculation.
You may invoke this method more than once. Then, when you want to disable automatically re-calculation, you must invoke #unwatch same times as the number of calls to this method.
(var: EachOps[Binding, A]).each
(var: EachOps[Binding, A]).each
Source variable of data binding expression.
You can manually change the value:
Then, any data binding expressions that depend on this Var will be changed automatically.