eval ()

Question

need help! who can explain step by step

var a = "2*3";
var b = 5;
var c = eval(b+a);
document.write(c);

Answer 1

(Really??…)

Answer 2

eval() executes a string as pure javascript.
(c = 5 + 2 * 3)

Answer 3

In fact, eval(expr) firstly evaluate the expression passed in argument, and secondly eval the string, if the argument resulting is a string ( else return the argument unchanged ). So, argument in this case is b+a, wich is equal to "52*3" ( concanetation of "5" et "2*3" ), that's count 156 ^^

Answer 4

@visph is correct, 156.

Answer 5

thanks guys

Answer 6

156?