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pwd # ~/tmp
(
mkdir foo
cd foo
pwd # ~/tmp/foo
)
pwd # ~/tmp

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Process:         Safari [61170]
Path:            /Applications/WebKit.app/Contents/MacOS/WebKit
Identifier:      org.webkit.nightly.WebKit
Version:         ??? (???)
Code Type:       X86-64 (Native)
Parent Process:  launchd [151]

Date/Time:       2011-06-28 23:34:13.885 +0400
OS Version:      Mac OS X 10.6.7 (10J869)
Report Version:  6

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Process:         Safari [25546]
Path:            /Applications/Safari.app/Contents/MacOS/Safari
Identifier:      Safari
Version:         ??? (???)
Code Type:       X86-64 (Native)
Parent Process:  perl5.10.0 [25535]

Date/Time:       2011-06-24 20:28:58.876 +0400
OS Version:      Mac OS X 10.6.7 (10J869)
Report Version:  6

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var obj = {};

Object.defineProperty(obj, "x", {value: 42, enumerable: false});
Object.defineProperty(obj.__proto__, "y", {value: 63, enumerable: false});

for (var key in obj) console.log(key)
// nothing

Object.keys(obj)
// []

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rectangle = {
  width: 10,
  height: 8
}

rectangle.__proto__ = {
  area: function() {
    return this.width * this.height
  }
}

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var snapshot = {};
for (var k in window) {
  snapshot[k] = window[k]
}


var a = 1;

var diff = {};
for (var k in window) {

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Bugzilla attachments preview

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var myModule = {};

magicNamespace(myModule, function(){
  var a = 1;
});

myModule.a // 1

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var O = {};

// Magic begins
  var a = 1;
// Magic ends

a // undefined
O.a // 1

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// Re: http://twitter.com/pepelsbey/status/24410437437

var a = 10;
loop = setInterval( fadeout, 1000 );
function fadeout() {
	console.log(a / 10);
	if( a > 0 ) {
		a -= 2;
	} else {
		clearInterval( loop );