Question: Consider the following JavaScript program: function sub1() {var x; function sub2() {//creates a popup box with the value of x alert(x);}; function sub3() var x;
Consider the following JavaScript program: function sub1() {var x; function sub2() {//creates a popup box with the value of x alert(x);}; function sub3() var x; x = 3; sub4(sub2);}; function sub4(subx) {var x; x = 4; subx();}; x = 1; sub3();} sub1(); Give the output of this program when executed using (a) deep, (b) shallow, and (c) ad-hoc binding
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