Consider the following ECMAScript$6$ code:

x $=1$

m: $42$

f: function $()($

z $=\backslash \{1,2,3\backslash \}$

let str;

a$.$forEachle

str this.

return stri;$\}$

$1.$

tog $($x$,$f$())$

D

What is the result of running this code?

Select the closest option

It will give a compilation error

It will pop up an alert message "identifier this is undefined"

It will print $424242$ to the console log

It will print undefinedundefinedundefined to the console log

It will print complete successfully with an empty line output to the console