Javascript removing null or undefined object from array of objects [duplicate]

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Remove blank attributes from an Object in Javascript (57 answers)

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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
]

stackoverflow.com/a/38340730/3297914 You should check your API return though instead of cleaning the object afterwards. — Hirbod
– Hirbod, Commented Oct 6, 2021 at 2:17
Duplicate of Remove blank attributes from an Object in Javascript — Samathingamajig
– Samathingamajig, Commented Oct 6, 2021 at 2:19

emptyhua · Accepted Answer · 2021-10-06 02:21:25Z

3

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

answered Oct 6, 2021 at 2:21

emptyhua

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Spectric · Accepted Answer · 2021-10-06 02:26:38Z

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 6, 2021 at 2:26

answered Oct 6, 2021 at 2:20

Spectric

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