Re: [nodejs] Problem with Node.js in "For in"

. //Hack Fri, 23 Aug 2013 04:40:06 -0700

if you look closely, I use array of objects. And iteration in array but not in object. Now I use "user[action].forEach(function(act){" and don't have problem

23/08/13 15:05:53, Fedor Indutny <[email protected]>:

Sorry, but I can't see a problem here... For each iterates not only through own properties, but through the prototype's properties too. That's how it is defined in spec, and that's how _javascript_ behaves.

What you probably want to do is `Object.keys(obj).forEach(function(key) { var value = obj[key]; ... })`.

Cheers,
Fedor.

On Fri, Aug 23, 2013 at 3:04 PM, Александр Крылов <[email protected]> wrote:

Installed next modules:

cloneextend
express
imagemagick
mongodb
mongoose
nodemailer
session-mongoose
socket.io
validator

And I didn't extend prototype. With Array.forEach no problem. Only for in

пятница, 23 августа 2013 г., 14:52:00 UTC+4 пользователь Fedor Indutny написал:

It seems that you've installed modules that are extending Array's or Object's prototype.

Cheers,
Fedor.

On Fri, Aug 23, 2013 at 2:24 PM, Александр Крылов <[email protected]> wrote:

Hello!
I have problem.

For test example code:

var user = {}
var action = '';

user[action] = [{ user_id: '521319f2df3b320810000005',
    _id: '521723678857785c0500000b',
    action: { acType: 'photo', acId: '3' },
    viewed: false },
    { user_id: '521319f2df3b320810000005',
        _id: '5217293a1cab19bc11000008',
        action: { acType: 'photo', acId: '1' },
        viewed: false },
    { user_id: '521319f2df3b320810000005',
        _id: '52172c97d8b04bdc11000008',
        action: { acType: 'photo', acId: '1' },
        viewed: false },
    { user_id: '521319f2df3b320810000005',
        _id: '52172cc201feeff811000008',
        action: { acType: 'photo', acId: '1' },
        viewed: false },
    { user_id: '521319f2df3b320810000005',
        _id: '52172ce901feeff811000009',
        action: { acType: 'photo', acId: '1' },
        viewed: false },
    { user_id: '521319f2df3b320810000005',
        _id: '52172d0d80f9c07013000008',
        action: { acType: 'photo', acId: '1' },
        viewed: false },
    { user_id: '521319f2df3b320810000005',
        _id: '52172e038c017e0412000008',
        action: { acType: 'photo', acId: '1' },
        viewed: false },
    { user_id: '521319f2df3b320810000005',
        _id: '52172e8ca282584010000008',
        action: { acType: 'photo', acId: '1' },
        viewed: false }];
console.log(user[action]);
for(var i in user[action]){
    console.log(i);
}

So, first console.log shows all elemrnts of array, good. Second console.log shows key of iteration and shows:

0
1
2
3
4
5
6
7
_atomics
validators
_path
_parent
_schema
_cast
id
toObject
inspect
create
notify
_markModified
_registerAtomic
$__getAtomics
hasAtomics
push
nonAtomicPush
$pop
pop
$shift
shift
pull
remove
splice
unshift
sort
addToSet
set
indexOf

I tested in Node.js (0.10.12) and all browsers. Problem only in node.js
Can you help me?

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Re: [nodejs] Problem with Node.js in "For in"

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