Due: $11$:$59$ PM$,10/07/2024$

The answers must be typed.

Question $1$

With regard to the following JavaScript program,

function main$($

function sub$1()$

var x $=10$;

function sub$2()\{$

vars y $=$ x;

$\}$

function sub$3()$

var x$\}=5$

var x $=20$;

$\}$

If it is interpreted using static$-$scoping rules. What value of $x$ is displayed in

functions sub$1,$ sub$2,$ and sub$3$ respectively? Why?

If it is under dynamic$-$scoping rules, what value of $x$ is displayed in functions sub$1,$ sub$2,$

and sub$3$ respectively? Why?

Question $2$

With regard to the following JavaScript program,

var x ;

function sub$1()\{$

dacumentwrite$("$x $="+$ x $+"")$;

$\}$

function sub$2()\{$

var x ;