unexpectedly! bravo!

Definetly a unique solution.

lege artis

nice

Cool!

clever!

i like it <3

Thanks for that explanation :) I didn't think of using split and join in that way.

.replace is 3 to 15 times faster (Chrome). Just tested.

How does this solution compare performance-wise to a simple .replace? I would imagine turning a long sequence into an array and back into a string a costly operation.

You can save the whole iteration of the map function by doing the calculation in each iteration of the reduce function

i really like this chunk

if (st === '' || n > we.length) {
    return st === '' ? "No participants" : "Not enough participants";
  }

and the rest i'm still admiring. thanks for your beautiful code!!!

Yeahh, mine neither. :)
Note to myself: Never trait written code even as something to start from!

Well this is a bug fixing kata so other solutions aren't exactly following in the spirit of things.