CODEWITHSUNDEEP
javascript
Vladimir B
Vladimir B

Reputation: 19

Remove objects with empty values from array / Javascript

I have an array of objects:

let arr = [{id:0, value: 'zero'}, 
           {id:1, value: 'one'}, 
           {id:2, value: ''}]

I need to remove object with empty value. What I am trying:

const removeEmpty = (arr) => {
let filtered = arr.filter(val => val.value != '');
return filtered;

};

Stuck with this:

TypeError: Cannot read property 'filter' of undefined

Edit: corrected syntax

Upvotes: 0

Views: 572

Answers (5)

syntax-punk
syntax-punk

Reputation: 4570

Following code will be helpful in more cases, for instance if object value is: false, null, empty string or undefined. 

let arr = [
  {id:0, value: 'zero'}, 
  {id:1, value: 'one'}, 
  {id:2, value: ''},
  {id:3, value: false},
  {id:4, value: null},
  {id:5}
];

const filteredArr = arr.filter(obj => obj.value);  

console.log(filteredArr);

Upvotes: 0

Ninja
Ninja

Reputation: 348

This questions is already answered in below link, Please have a look

Click here!

Upvotes: 0

Saurabh Yadav
Saurabh Yadav

Reputation: 3386

Seems your arr is not correct i.e object key value pair is not valid

let arr = [{id:0, value: 'zero'}, {id:1, value: 'one'},  {id:2, value: ''}];

const removeEmpty = (arr) => {
  let filtered = arr.filter(val => val.value !== ''); 
  return filtered;
}

removeEmpty(arr)

Upvotes: 0

Niladri Basu
Niladri Basu

Reputation: 10614

IMHO, you are looking for something like this:

var arr = [{id:0, value: 'zero'}, {id:1, value: 'one'}, {id:2, value: ''}];

var filteredArr = arr.filter(obj => obj.value != '')
console.log(filteredArr);

NOTE: Your's is not a proper array (because Objects inside it are invalid).

Upvotes: 2

Joven28
Joven28

Reputation: 769

You missed a comma on the value of id and a quote for the value of the value property

let arr = [{id:0, value: "zero"}, 
           {id:1, value: "one"}, 
           {id:2, value: ''}];
           
           
console.log(arr.filter(a => a.value != ''));

Upvotes: 0

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