Some cool new features are coming to the Javascript language namely Optional chaining and nullish coalescing how useful are they? lets discuss
So Optional chaining and nullish coalescing are coming to the Javascript language. I think it is already in the Javascript Engines (V8, SpiderMonkey, JavascriptCore and Chakra) which will be picked up by other clients such as browsers, node js , dino other stuff .. Cool stuff lets get into it.

Show them (chrome devtools)
Where is it available?
Node JS not yet (13.9 V7.9) (https://github.com/nodejs/node/blob/master/doc/changelogs/CHANGELOG_V13.md#13.9.0)

Resources
V8 release v8.0 · V8
Optional Chaining
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining
Nullish coalescing
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing_operator