In my opinion, [].filter is kind of cryptic. You're creating a new empty array and then discarding it just to be able to use one of its methods on another object. If you want to access prototype methods in general, get them from the actual prototype object:
Array.prototype.filter.call(iterable,condition)
It's a little longer but it doesn't look weird, doesn't create an unnecessary array, and anyone reading the code can see that the method I'm using comes from the Array prototype. This approach also works for every kind of prototype, not just arrays.
In my opinion,
[].filteris kind of cryptic. You're creating a new empty array and then discarding it just to be able to use one of its methods on another object. If you want to access prototype methods in general, get them from the actual prototype object:It's a little longer but it doesn't look weird, doesn't create an unnecessary array, and anyone reading the code can see that the method I'm using comes from the
Arrayprototype. This approach also works for every kind of prototype, not just arrays.Thanks Valentin.
I also think that
[].filter.callis just a clever trick, which can confuse people.Clever doesn't necessarily make it a good or readable code and I do agree with your opinion it being "cryptic".