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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JS Bin</title>
</head>
<body>
  <script>window.log = console.log.bind(console);</script>
</body>
</html>
 
var myFunction = function() {
  var foo = 'bar';
};
myFunction();
log( typeof foo ); // تطبع undefined!
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