exercise 1
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console.log("Case 1");
function a() {
var x=1;
function b() {
console.log("internal function", x);
}
++x;
b();
}
a();
console.log("Case 2");
function a() {
var x=1;
function b() {
console.log("internal function", x++);
}
++x;
return b;
}
a()();
console.log("Case 3");
function a() {
var x=1;
function b() {
console.log("internal function", x++);
}
++x;
return b;
}
y=a();
y();
y();
y();
JavaScript
INFO