RxJS in Action

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 http://reactivex.io/rxjs/manual/overview.html#choose-an-operator.

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

Table B.1. Static scope operators

Situation	Purpose	Operator
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 ...