Waht wil alert ?

Question

let a = (1,5 - 1) * 2;

alert(a);

Answer 1

looks like an error.

used ',' instead of '.'

Answer 2

8 should be alert😇

Answer 3

My mistake

the code runs

https://code.sololearn.com/WP444LCvvuzw/?ref=app

Answer 4

Yeah. i didn't saw this at first time)