Create Elements of an Object in a Loop

Question

i want to create nested elements of an Object in a loop this works manuel :

$tmp={ "items": {
 "key1": {"name": "alpha"},
 "key2": {"name": "bravo"},
 "key3": {"name": "charlie"}
 }
 }
 alert($tmp['items']['key2']['name'])

But how can i create all vals in a loop??? something like:

 for (var x = 0; x < 100; x++) {
 $tmp2={"key"+x: {"name": "name"+x}}
 $tmp.push($tmp2)
 }
 alert($tmp['items']['key0']['name'])

???

• Brian Glaz: did you try it? what happened?
• Brian Glaz: also, you can only push to an array, not an object. You would need to make items an array, and then do $tmp['items'].push($tmp2);
• dazzafact: it will create new Keys "0","1"($tmp['items'][0]['key0']['name'])

Answer 1

Declare the container for your key/value pairs outside the loop, then use the [] syntax to add keys to the container inside your loop.

 $tmp = { "items": {} };
 for (var x = 0; x < 10; x++) {
 // $tmp.items is equivalent to $temp["items"]
 $tmp.items["key"+x] = { "name" : "name" + x };
 }

This results in:

{
 "items": {
 "key0": {
 "name": "name0"
 },
 "key1": {
 "name": "name1"
 },
 "key2": {
 "name": "name2"
 },
 "key3": {
 "name": "name3"
 },
 "key4": {
 "name": "name4"
 },
 "key5": {
 "name": "name5"
 },
 "key6": {
 "name": "name6"
 },
 "key7": {
 "name": "name7"
 },
 "key8": {
 "name": "name8"
 },
 "key9": {
 "name": "name9"
 }
 }
}

Answer 2

You can do this:

var $tmp={ 'items': {} };
for (var x=0; x<100; x++) {
 $tmp['items']['key'+x]={ 'name': 'name'+x };
}
alert($tmp['items']['key0']['name']);

But the value of $tmp.items.keyN.name is just nameN seems meaningless ..