because in my opinion it is readable, no more. You shouldn't attribute your complexes.

Your first take was: "the sum first and then the multiplication..?"

Ok, "2+2*2 = 8" guys, chill

Let these people learn math base rules first, not rust.
It's ridiculous to make such mistakes.

––––––––––––––––

Edited: But now i see u edited and mean clarity way, ok, i agree with that, but strange thing yet

It definetly can work without the braces due to math rules, but sometimes a small element like this gives tons of clarity.

(6 * 3) + 2 = 20 (I bet close to 95% of people solving this will get the right answer)
Comparing to:

6 * 3 + 2 = 20 | 30 (Here there will be confused people doing the sum first and then the multiplication)

braces..? why

https://stackoverflow.com/questions/5971645/what-is-the-double-tilde-operator-in-javascript

Nevermind, I didn't see the other replies.

I don't get the part where c is a boolean but also remembers carrying the number into the next loop.
Why is that?

Edit: got it.
If you add a variable with true to a number the truth equals to one.
So: var a = 5 and var b = true becomes with a + b a solid 6.
Didn't know that.

Love your aproach!

I think it'd be worth adding another variable name to make the code a little more clear. It confused me that you were using the c variable for summing and carrying over a digit. For example, you could say var sum = ~~a.pop() + b.pop() + c instead of c += ~~a.pop() + ~~b.pop(). And then say res = sum % 10 + res

It looks like we are expected to include a .equals method as well even though it is not specified.

What is doing the ~~a, ~~b in javascript can't find any documentation ? Thanks!

I got some issues with the a.add(...).equals is not defined, i think there are some issues with the test case.