RxJS is a lot about the so-called "operators". We will learn most of the important operators, one by one. In this lesson, we will see our first creation operator: of().

 

var foo = Rx.Observable.of(42, 100, 200);// var bar = Rx.Observable.create(function (observer) {
    //   observer.next(42);//   observer.next(100);//   observer.next(200);//   observer.complete();// });foo.subscribe(function (x) {  console.log('next ' + x);}, function (err) {  console.log('error ' + err);}, function () {  console.log('done');});/*"next 42""next 100""next 200""done"*/