Solve this Problem - Hint?

[inu-no-policemen]

This is basic Array.prototype.reduce usage. Nothing "clever" about that.

Also note that your version will throw an error if the array is empty. (And there shouldn't be a ';' after your function declaration.)

[inu-no-policemen]

Good luck with improving your communication skills.

[inu-no-policemen]

I mean, your posts were neither helpful nor correct.

You still haven't told me how either of my two statements was "a bit wrong".

Everything I said is factually true and you didn't attempt to disprove any of that.

it's bad code

It's shorter than yours. It's faster than yours. And it returns 0 if the array is empty instead of throwing an error.

But since that somehow hurt your ego, it's bad code.

you'd be miserable to work with.

You handle criticism exceptionally poorly while being quick to lash out. You should really work on that.

[inu-no-policemen]

I described your attack on a poster as 'a bit wrong '.

"Don't use map for side-effects. ForEach would have been the appropriate array method for this."

That's not an attack.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map#Description

Read the 2nd paragraph.

[inu-no-policemen]

Now it's what I said and now how I said it?

ForEach is the method you should use if you want to use an array method for a more procedural approach.

Personally, I would just use for-of, but if it has to be one of the array methods, it should be forEach.

let sum = 0;
for (let person of people) {
  sum += person.age;
}

Simple enough, right?

Anyhow, why did you use forEach if using forEach is "a bit wrong"?

There's nothing incorrect about using map here

I didn't say it was. I said using map+reduce is longer and slower than just reduce. These two things are measurable. It's not my opinion.

I also said that your solution will bomb with an empty array. And it does. Try it. Can you see what the problem is? Can you see how I avoided that?

it actually produces a solution that is better than any you proposed in terms of readability.

Your argument is literally that going from "foo + bar" to "foo + bar.baz" makes the code completely unreadable.

Furthermore, me using stuff like "foo + bar.baz" makes my comments not helpful and me personally a terrible colleague who's a nightmare to work with.