how to insert new object with variable and value by the end of each object

Question

            [{ date="4/7/2012",  username="dealcloud",  user_id=304378189},
             { date="4/7/2012",  username="rizwanharun",  user_id=18932327
            },{ date="4/7/2012",  username="aimtoendhunger",  user_id=
            122384145},{ date="4/7/2012",  username="Sindy882",  user_id=
            705160297}}]

how can I insert a new object with variable and value by the end of each object. e.g i want to put location like date,username,user_id,location in each object

cheers for the help

Rahul Choudhary · Accepted Answer · 2012-08-04 10:28:47Z

2

Note: Your json syntax is wrong.

You can do something like this

var jsonObj = [{ "date":"4/7/2012",  "username":"dealcloud",  "user_id":304378189},
             { "date":"4/7/2012",  "username":"rizwanharun",  "user_id":18932327
            },{ "date":"4/7/2012",  "username":"aimtoendhunger",  "user_id":
            122384145},{ "date":"4/7/2012",  "username":"Sindy882",  "user_id":
            705160297}}];
for(var i = 0; i < jsonObj.length;i++) {
    jsonObj[i].location = "New location";
}

answered Aug 4, 2012 at 10:28

Rahul Choudhary

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2 Comments

anjel Over a year ago

but there is no location keys in the array. wont i have to create those first and after putting the values inside?

Rahul Choudhary Over a year ago

@anjelos even there was no 'location' key initially, javascript allows you to add it later.

LoG · Accepted Answer · 2012-08-04 10:29:51Z

1

remember that Objects doesn't have an order.

var ary = [{}, {}, {}];

for (i in ary) {
  ary[i]['new_key'] = 'new val';
}

answered Aug 4, 2012 at 10:29

LoG

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2 Comments

anjel Over a year ago

no when i do console.log it gives me an empty array. as i said from below the location key is not in any of the objects of the array.i have to create it first

LoG Over a year ago

to add a new key inside a JS Object all you have to do is var a = {}; a['my_new_key'] = 'value';. If you need to add a new object to an array use Array#push() MDN

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