How to efficiently remove nameless attribute from json object js [duplicate]

Question

I have a very large array of objects and some of the objects have a nameless property. What is an efficient way to remove the property?

[ 
  ...
  {
    "phone_number": "***-***-****",
    "category": "Abc",
    "link_to_company": "www.example.com",
    "email": "[email protected]",
    "company_name": "test company",
    "": "123", // this need to be removed
    "status": 1
  },
  ...
]

I'm not sure whether the critical issue is the empty value or empty key or both. Can you clarify, please? — ggorlen
– ggorlen, Commented Mar 26, 2021 at 18:40
Lawrence, thanks for the reply but what of there are unknown number of empty keys, I know I can use a loop to delete the empty keys but is there a better way to do that? — Shafqat Jamil Khan
– Shafqat Jamil Khan, Commented Mar 26, 2021 at 18:49
there can only be a single key of any name empty or not so can only be one. — Lawrence Cherone
– Lawrence Cherone, Commented Mar 26, 2021 at 18:55

Christofer Eliasson · Accepted Answer · 2021-03-26 18:58:55Z

2

A map function should do it.

array.map(v => { delete v[""]; return v })

answered Mar 26, 2021 at 18:58

Christofer Eliasson

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2 Comments

Shafqat Jamil Khan Over a year ago

thanks for the answer but what if there are multiple empty keys?

Brian Rogers Over a year ago

@ShafqatJamilKhan It's not possible that there are multiple empty keys in a single object-- all key names in an object are unique. Therefore there can be a maximum of one key per object that is an empty string. If you tried to set a second empty key, it would just replace the first.

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