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iam-peekay/sayHello.js Secret

Last active April 27, 2016 22:58
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sayHello.js
function sayHello() {
var say = function() { console.log(hello); }
// Local variable that ends up within the closure
var hello = 'Hello, world!';
return say;
}
var sayHelloClosure = sayHello();
sayHelloClosure(); // ‘Hello, world!’
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