Interface FilterFn<T>
interface FilterFn<T> {
subscribe?: (indexUpdate: IndexUpdateFn) => () => void;
(element: T): boolean;
}
subscribe?: (indexUpdate: IndexUpdateFn) => () => void;
(element: T): boolean;
}
Type Parameters
- T
any- Type of data.
Parameters
- element: T
Element of backing data structure to filter.
Returns boolean
Does the element pass the filter test.
- element: T
Index
Properties
Properties
Optionalsubscribe
Optional subscribe function following the Svelte store / subscribe pattern.
Type Declaration
- (indexUpdate: IndexUpdateFn): () => void
Parameters
- indexUpdate: IndexUpdateFn
Callback function that is invoked on update / changes. Receives
thisreference.
Returns () => void
- indexUpdate: IndexUpdateFn
Filter function that takes an element argument and returns a truthy value to keep it.
This function has an optional subscribe function that follows the Svelte store Subscriber pattern. If a subscribe function is provided automatic updates to the reduced index is performed.