I'm new with Prototype, but I use jQuery always. I have a site where I need to use jQuery as well as Prototype. I am having problems with the following code:

```
var x = [];
console.log(x);
for (var l in x)
{
console.log(l);
}

```

Running this code, x contains the following:

```

    each
    eachSlice
    all
    any
    collect
    detect
    findAll
    select
    grep
    include
    member
    inGroupsOf
    inject
    invoke
    max
    min
    partition
    pluck
    reject
    sortBy
    toArray
    entries
    zip
    size
    inspect
    find
    _reverse
    _each
    clear
    first
    last
    compact
    flatten
    without
    uniq
    intersect
    clone

```

Expected Result (without Prototype):

```

There are no child objects

```

Any reason why Prototype does this, and how to stop it?!

Thanks