Javascript removing null or undefined object from array of objects

Question

The below format is fetching from server and its strangely adding null value in the last object. I want to remove null or undefined objecs from the array. Can anyone help me?

[
  {
    "addrSeq": "12",
    "addinfo": [
      {
        "virAddrSeq": "45"
      }
    ]
  },
  null
]

https://stackoverflow.com/a/38340730/3297914 You should check your API return though instead of cleaning the object afterwards. — Hirbod, Oct 06 '21 at 02:17
Duplicate of [Remove blank attributes from an Object in Javascript](https://stackoverflow.com/questions/286141/remove-blank-attributes-from-an-object-in-javascript) — Samathingamajig, Oct 06 '21 at 02:19

Spectric · Answer 1 · 2021-10-06T02:26:38.727

3

You can use Array.filter to filter out null and undefined items by checking whether the item is not null (an undefined check is unnecessary, since null == undefined).

const arr=[{addrSeq:"12",addinfo:[{virAddrSeq:"45"}]},null,undefined];

const result = arr.filter(e => e != null)

console.log(result)

edited Oct 06 '21 at 02:26

answered Oct 06 '21 at 02:20

Spectric

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6
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score 2 · Accepted Answer · answered Oct 06 '21 at 02:21

2

let arr = [
  {
    "addrSeq": "12",
    "addinfo": [
      {
        "virAddrSeq": "45"
      }
    ]
  },
  null
];
arr = arr.filter((i)=>i !== null && typeof i !== 'undefined');
console.log(arr);

answered Oct 06 '21 at 02:21

emptyhua

6,408
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11

Javascript removing null or undefined object from array of objects

2 Answers2