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Question $2$

With regard to the following JavaScript program,

var x

functiop, subl

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

$\}$

function sub

var x ;

$x=10$

sub$10$;

$s=5$;

sub$20$;

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

function sub$1?$ Why?

If it is under dy

If it is under dynamic$-$scoping rules, what value of $x$ is displayed in function sub$1?$ Why?

Question $3$

Consider the following JavaScript program with static $-$ scoping:

$p=x,$

$\}$

$\}$

functiop sub$3)$

${?}^2=7,w=8$;

var $q=y$;Question $2$

With regard to the following JavaScript program,

var x ;

function suble $)$

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

functionsub$2()\{$

var x ;

$x=10$

sub$10$;

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

function sub$1?$ Why?

If it is under dynamic$-$scoping rules, what value of $x$ is displayed in function subl? Why?

Question $3$

Consider the following JavaScript program with static $-$ scoping

varx$=1,y=2$

function sub$1$

$\}$

Answer the questions:

What is the value of $z$ in sub$10?$

What is the value of $y$ in $)?$

What is the value of a in sub$20)?$

What is the value of $x$ in sub$2()?$

What is the value of a in sub$3()?$

What is the value of $y$ in sub$3()?$