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Consider the following JavaScript skeletal program: / / The main program var x; function sub 1 ( ) { Problem Set 2 5 3 var
Consider the following JavaScript skeletal program:
The main program
var x;
function sub
Problem Set
var x;
function sub
function sub
Assume that the execution of this program is in the following unit order:
main calls sub
sub calls sub
sub calls sub
a Assuming static scoping, in the following, which declaration of x is the
correct one for a reference to x
i sub
ii sub
iii. sub
b Repeat part a but assume dynamic scoping.
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