subscribe's argument should support Partial<Listener>

[janckerchen]

It's very often to subscribe with empty listener, like

xs.periodic(1000).subscribe()

It's unnecessary to repeat this everytime, in typescript of couse

xs.periodic(1000).subscribe({next(){}, error(){}, complete(){}})

[mightyiam]

You'd never wish to do that, other than debugging, I figure. So maybe it's fine as it is?

[staltz]

In JavaScript, .subscribe({}) should work. In TypeScript, I think it's a bug that it doesn't support {}, because the argument should be Listener, but under the hood, subscribe uses addListener, which in TypeScript correctly supports a Partial<Listener>.

[xtianjohns]

.subscribe({}) works just fine for me in JS/TS in 11.7. Should we close?