External module "hs/watch/index"

watch

• watch<T>(hs: HyperScope, hv: HyperValue<T> | number, fn: WatcherFn<T>): number

• Applied to a hyper-value it observes any changes and invokes fn each time hyper-value changes.

  Type parameters

  • T

  Parameters

  • hs: HyperScope

    HyperScope instance

  • hv: HyperValue<T> | number

    hyper-value to be observed

  • fn: WatcherFn<T>

    a function to be called on changes

  Returns number

  return a WatcherId that can be used in unwatch helper