Consider the following JavaScript program: var x, y, x; function sub1 () { var a
ID: 3757888 • Letter: C
Question
Consider the following JavaScript program:
var x, y, x;
function sub1 ()
{
var a, y, z;
function sub2 ()
{
var a, b, z;
. . .
}
. . .
}
function sub3 ()
{
var a, x, w;
. . .
}
Variable Where Declared List all the variables, along with the program units (sub1, sub2, sub3) where they are declared, that are visible in the bodies of sub1, sub2, and sub3, assuming static scoping is used.
In sub1:
In sub2:
In sub3:
Explanation / Answer
In sub1:
x,y,a,z
In sub2:
x,y,a,z,b
In sub3:
x,y,a,w