Function filter

filter<A>(fn): Transformer<A, A>
Filters out values from an Observable which do not satisfy the given predicate.
Type Parameters
- A
Parameters
- fn: ((value, index?) => boolean)
  The predicate function which will test each upstream value.
  - - (value, index?): boolean
    - Parameters
      value: A
      Optional index: number
      Returns boolean
Returns Transformer<A, A>
See
Transformer
- Defined in index.ts:301

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