RxJS: How to import Just

Question

I'd like to use RxJS's just.
What I need it for is Observable.just(null), which can't be done with Observable.from().

I'm trying

import 'rxjs/add/operator/just';

But it's not present in where it should be - node_modules/rxjs/add/operator, so this fails to compile.

How can I add this operator?

Answer 1

That depends on the version of Rx.js:

• 4.0 includes a .just method;
• 5.0 doesn't. Instead, use the .of method.

Like this:

Rx.Observable.of(null).forEach(x => console.log(x))