declaring an array with "new Array()" vs "[]"

[sonic]

what exactly is the difference ?

I think that [] is more suitable for declarative arrays, but not
exactly sure why.

TIA

[Martin Honnen]

Re: declaring an array with "new Array()" vs "[]"



sonic wrote:
[color=blue]
> what exactly is the difference ?[/color]

The difference between
new Array()
and
[]
?
Both expressions create (not declare!) an empty array. [] is shorter and
was added to the language later but nowadays browsers that don't support
the [] syntax are extinct so it is pretty much your choice of preference
what you use.


--

Martin Honnen

http://JavaScript.FAQTs.com/

[sonic]

Re: declaring an array with "new Array()" vs "[]"

thanks,

so are you saying is that there is absolutely no difference in
javascript object model between both approaches ?

[Danny]

Re: declaring an array with "new Array()" vs "[]"



Correct. Other than semantically, is the same constructor.

Danny

On Mon, 11 Jul 2005 10:46:04 -0700, sonic <sonicsoul@gmai l.com> wrote:
[color=blue]
> thanks,
>
> so are you saying is that there is absolutely no difference in
> javascript object model between both approaches ?
>[/color]



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Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

[Douglas Crockford]

Re: declaring an array with &quot;new Array()&quot; vs &quot;[]&quot;

sonic wrote:[color=blue]
> so are you saying is that there is absolutely no difference in
> javascript object model between both approaches ?[/color]

There is a difference:

new Array(30)

is not the same is

[30]

The array literal notation is better.

http://www.JSON.org

[sonic]

Re: declaring an array with &quot;new Array()&quot; vs &quot;[]&quot;

Do you mind elaborating as to why it is better ?

[VK]

Re: declaring an array with &quot;new Array()&quot; vs &quot;[]&quot;

> Do you mind elaborating as to why it is better ?

Both Array() and [] are equal if you create (oops... "instantiat e") an
empty array. You can check the set of build-in properties/methods. they
are equal (because the same constructor is used).

They treat differently arguments (if you instantiate some array
elements right away).
Array(args) scheme is rather tricky, so [args] leaves you lesser place
for a typo.

Read more here:
<http://www.geocities.c om/schools_ring/ArrayAndHash.ht ml#Array_create >