Module "xform/multiplex-obj"

multiplexObj

• multiplexObj<A, B>(xforms: IObjectOf<TxLike<A, any>>, rfn?: Reducer<B, [PropertyKey, any]>): Transducer<A, B>
• multiplexObj<A, B>(xforms: IObjectOf<TxLike<A, any>>, src: Iterable<A>): IterableIterator<B>
• multiplexObj<A, B>(xforms: IObjectOf<TxLike<A, any>>, rfn: Reducer<B, [PropertyKey, any]>, src: Iterable<A>): IterableIterator<B>

• Transducer. Similar to (and building on) {@link (multiplex:1)}, but takes an object of transducers and produces a result object for each input.

  example

  [...multiplexObj(
    {
      initial: map(x => x.charAt(0)),
      upper:   map(x => x.toUpperCase()),
      length:  map(x => x.length)
    },
    ["Alice", "Bob", "Charlie", "Andy"]
  )]
  // [ { length: 5, upper: 'ALICE', initial: 'A' },
  //   { length: 3, upper: 'BOB', initial: 'B' },
  //   { length: 7, upper: 'CHARLIE', initial: 'C' },
  //   { length: 4, upper: 'ANDY', initial: 'A' } ]

  Type parameters

  • A

  • B

  Parameters

  • xforms: IObjectOf<TxLike<A, any>>

    object of transducers

  • Optional rfn: Reducer<B, [PropertyKey, any]>

    -

  Returns Transducer<A, B>

• Type parameters

  • A

  • B

  Parameters

  • xforms: IObjectOf<TxLike<A, any>>

  • src: Iterable<A>

  Returns IterableIterator<B>

• Type parameters

  • A

  • B

  Parameters

  • xforms: IObjectOf<TxLike<A, any>>

  • rfn: Reducer<B, [PropertyKey, any]>

  • src: Iterable<A>

  Returns IterableIterator<B>