zip.md

Rx.Observable.zip(...args, [resultSelector])

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Merges the specified observable sequences or Promises into one observable sequence by using the selector function whenever all of the observable sequences have produced an element at a corresponding index. If the result selector function is omitted, a list with the elements of the observable sequences at corresponding indexes will be yielded.

Arguments

1. args (Array|arguments): Observable sources.
2. [resultSelector] (Function): A function which takes the inputs at the specified index and combines them together. If omitted, a list with the elements of the observable sequences at corresponding indexes will be yielded.

Returns

(Observable): An observable sequence containing the result of combining elements of the sources using the specified result selector function.

Example

Without a result selector

var range = Rx.Observable.range(0, 5);

var source = Observable.zip(
  range,
  range.skip(1),
  range.skip(2)
);

var subscription = source.subscribe(
  function (x) {
    console.log('Next: %s', x);
  },
  function (err) {
    console.log('Error: %s', err);
  },
  function () {
    console.log('Completed');
  });

// => Next: 0,1,2
// => Next: 1,2,3
// => Next: 2,3,4
// => Completed

Using arguments

Using promises and Observables */