Echo JS 0.11.0

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xat 2663 days ago. link 1 point ▲ ▼
Cool proposal in general, although there are still cases where _.get is somehow nicer:

const num = _.get(foo, 'bar.baz', 1337);

VS:

const num = typeof foo?.bar?.baz !== 'undefined' ? foo?.bar?.baz : 1337;

Replies

bevacqua 2663 days ago. link 3 points ▲ ▼
Generally you would do `foo?.bar?.baz || 1337`, unless `baz` was expected to sometimes have a significant falsy value.

I've talked about an idea to introduce `??` (from C#, null coalescing operator), which provides default values for undefined case only (not all of falsy), with which `foo?.bar?.baz ?? 1337` would be equivalent to the top line in your code.
xat 2662 days ago. link 1 point ▲ ▼
Yeah, I intentionally did the example with a number, because there you have the problem of 0 being falsy.
The `??`-solution would be nice IMHO.