I have heard that instanceof operator in
java is a performance issue,
Is it true for Javascript too (IE6,IE7,IE8,FF,Chrome,safari,etc.)? any links to authentic papers would be helpful.
I Need to know this from knowledge point of view.
for reference, I have also posted this same question at another forum:
http://stackoverflow.com/questions/1978663/is-using-instanceof-operator-in-javascript-a-performance-issue