Appendix B. Choosing an operator

The following is a list of operators and a description of when to use them. We cover the operators (static and instance) used in this book. Some operators can act as both static and instance, and we indicate which ones. For a more complete list, please visit

All factory operators are called as static methods of the Rx.Observable type. See table B.1.

Table B.1. Static scope operators




Creating a new instance With custom logic From a given value create
  From an observable-like object from
  From a range of numbers range
  With an exception catch
  From an ES6 promise From any event originated by ...

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