Remove an object from an array

Question

What is the way to remove an property named "itemType"from the below given object ?

 {
    "id": 19,
    "cost": 10,
    "items": 10,
    "numbers": 10,
    "status": false,
    "hours": 10,
    "itemType": {
        "id": 16,
        "name": "PC 350",
        "description": "PC 350"        
    },
    "typeid": 12
}

So that the final array should look like

 {
    "id": 19,
    "cost": 10,
    "items": 10,
    "numbers": 10,
    "status": false,
    "hours": 10,         
    "typeid": 12
}

there is no array here, and no object `itemtype`. There is however a single object that has a property `itemtype` — charlietfl, Dec 22 '14 at 06:51
possible duplicate of [Remove property from JavaScript object](http://stackoverflow.com/questions/208105/remove-property-from-javascript-object) — Quip Yowert, Dec 26 '14 at 04:32

score 2 · Accepted Answer · answered Dec 22 '14 at 06:51

This is object not array. You can use delete like this

   var obj = {
        "id": 19,
        "cost": 10,
        "items": 10,
        "numbers": 10,
        "status": false,
        "hours": 10,
        "itemType": {
            "id": 16,
            "name": "PC 350",
            "description": "PC 350"        
        },
        "typeid": 12
    }

    delete obj.itemType;

score 0 · Answer 2 · answered Dec 22 '14 at 06:55

0

Whether it is an object and you want to delete a property from it, or you have an array and want to delete a value, the way to delete is -

delete obj.itemType //object.
delete array[3] //delete 4th item from the array.

Note - the structure you have provided is not an array, its an object.

answered Dec 22 '14 at 06:55

rahul prakash

47
4

Then what can be the best solution @charlietfl? – forgottofly Dec 22 '14 at 07:00
1

splice() . Using delete doesn't remove that index, so length doesn't change. Try this `var a=[1,2,3]; delete a[1] console.log(a.length);` – charlietfl Dec 22 '14 at 07:01
1

True, use splice method which is the preferred way. – rahul prakash Dec 22 '14 at 07:02
Pls not using delete would leave the index as it is and accessing it would give you undefined. Where as splice is going to remove the required element and automatically shift the values. – rahul prakash Dec 22 '14 at 07:05

Remove an object from an array

2 Answers2