Syntax for Instantiating JavaScript Date Objects

Question

In JavaScript, it seems you can do either write:

new Date().getTime();

...or:

(new Date).getTime();

The first one is logical, but the second one seems a little unusual to me... Is there any difference between these two ways of creating a Date object, and what is the purpose of the second?

Thanks,

Steve

Rashack · Accepted Answer · 2009-03-31 07:44:19Z

4

It seems that in javascript you can call constructor without parethesis. At least it works with my Firefox. So (new Date) == new Date()

Implying from that both expressions are equivalent. Alternatively you could write

(new Date()).getTime();

Which is what I usually do.

And I think it's just matter of personal preference. The new operator takes precedence before the . operator but the visual might suggest the other way round...

answered Mar 31, 2009 at 7:44

Rashack

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