You solution is great. But I'm more prefer with how binary working in computer system.

Ironic how I used the parseInt function unaware of its radix optional parameter.
Oh well, we learn, we keep learning. That was nice!

no need for zero(initialValue)

the lack of typing work on typescript ? should it say that the parameters are not typed ?

Will consider using isNan for checks now.

just can say 'omg' )))
thank you! it so simple

wow! so simple yet so clear

I want to know how I can identify the best-practice solution, as you mentioned. How can I determine that sorting is not a suitable approach in this situation?

This is actually not the best way of solving this problem. The instructions say to consider there being a large number of inputs. In terms of Big O, if you submitted this solution for production code, you'd have a LOT of people mad at you.

How does it works???? anyone can to explain?

Coercion in this way is really useful sometimes!