id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
7260	node.js -> getParents performance poor	campaign		"	getParents : function( closerFirst )
		{
			var node = this;
			var parents = [];

			do
			{
				parents[  closerFirst ? 'push' : 'unshift' ]( node );
			}
			while ( ( node = node.getParent() ) )

			return parents;
		},

unshift method performance poor 
example code
	var t = +new Date,s = []
	for(var i = 0;i<1000;i++){
		s.push(i)
	};
	s.reverse();
	alert(+new Date - t) // 2

	var t = +new Date,s = []
	for(var i = 0;i<1000;i++){
		s.unshift(i)
	};

	alert(+new Date - t) //21
in ie8 
"	Bug	new	Normal		General	3.5.3 (SVN - trunk)