CODEWITHSUNDEEP
javascript
Chriss
Chriss

Reputation: 33

How to remove object from object array by object key name?

I want to be able to remove an object from this object array individually by its key name. So if I wanted to remove item1 I would call a function or something similar and it would remove it completely.

var list = [{item1: 'Foo'}, {item2: 'Bar'}];

removeObjectByKeyName(item1);

I expect the object array after deletion to be [{item2: 'Bar'}]

Any help is appreciated. Thanks!

Upvotes: 0

Views: 42

Answers (3)

Code Maniac
Code Maniac

Reputation: 37755

You can use filter and hasOwnProperty

var list = [{
  item1: 'Foo'
}, {
  item2: 'Bar'
}];

var toRemove = 'item1';
var result = list.filter(o => !o.hasOwnProperty(toRemove));

console.log(result);

Upvotes: 0

Eddie
Eddie

Reputation: 26844

One option is using filter to filter the array element with no property name toRemove

var list = [{
  item1: 'Foo'
}, {
  item2: 'Bar'
}];

var toRemove = 'item1';
var result = list.filter(o => !(toRemove in o));

console.log(result);

With removeObjectByKeyName function. The first parameter is the key to remove and the second is the array.

let list = [{
  item1: 'Foo'
}, {
  item2: 'Bar'
}];


let removeObjectByKeyName = (k, a) => a.filter(o => !(k in o));

let result = removeObjectByKeyName('item1', list);

console.log(result);

Upvotes: 2

coffidev
coffidev

Reputation: 999

this function will do what you need:

var list = [{item1: 'Foo'}, {item2: 'Bar'}];

function removeObjectByKeyName(list, key) {
  return list.filter(item => !Object.keys(item).find(k => k === key) )
}

removeObjectByKeyName(list, 'item1') // [{item2: 'Bar'}]

Upvotes: 0

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