Question

What’s the differences, pros, or cons of

var obj = {};

VS

var obj = new Object();

All I know is that the second example takes longer. Is there any real benefit?

** EDIT **

function loop() {
    var start = (new Date()).getTime();
    for(var i = 0; i < 1000000; ++i) {
        //var b = {}; // takes ~548ms on my machine
        var b = new Object(); // takes ~287ms on my machine
    }
    trace((new Date()).getTime() - start);
    setTimeout(loop, 1);
}
loop();

If you switch between var b = {}; and var b = new Object(); You’ll see the performance differences. They are opposite from my recollection and what I mentioned in the question.

Answer 1

As far as I’m aware, they are equivalent. By “the second example takes longer”, I assume you mean only in time to type the statement, and maybe a probably immeasurable amount of time to evaluate – but the execution time should be equivalent.