Function useChange

useChange<TEventSource, TValue>(node: TEventSource, query?: ((n: TEventSource) => TValue), deps?: DependencyList, isEqual?: ((a: TValue, b: TValue) => boolean)): TValue
A hook that tracks the CHANGE event in a Jacdac component and reruns, caches the query. The query is not part of the dependency checking.

Returns
Type Parameters
- TEventSource extends IEventSource
- TValue
Parameters
- node: TEventSource
  
  JDOM element
- Optional query: ((n: TEventSource) => TValue)
  
  query run whenever a change is signaled by the component
  - - (n: TEventSource): TValue
    - Parameters
      
      n: TEventSource
      
      Returns TValue
- Optional deps: DependencyList
  
  optional list of hooks dependencies
- Optional isEqual: ((a: TValue, b: TValue) => boolean)
  - - (a: TValue, b: TValue): boolean
    - Parameters
      
      a: TValue
      
      b: TValue
      
      Returns boolean
Returns TValue
- Defined in hooks/useChange.ts:13

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