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Closure in action
(function () {
"use strict";
function level1() {
var a = 'hello';
function level2() {
setTimeout(function () {
}, 100);
a = 'goodbye';
a = 'peekabo';
setTimeout(function () {
}, 200);

Hi AJ. Will be "coming at you live" from on that date also. Well worth checking out if anyone wants a deep dive on JavaScript closures.

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