Remove an array from an Array if a certain value exists in the array in javascript

Question

Trying to remove an entire array if within my data if it contains a certain value.

What would be the best approach to this problem?

data = [['true', 'visiting-today', 'DVM-Wiessman','J-001'],
['false', 'visiting-tommorrow', 'DVM-Stevens','K-001'],
['true', 'visiting-tommorrow', 'DVM-Stevens','Z-001'],
['false', 'visiting-tommorrow', 'DVM-Kon','J-001']]


var del_value = 'J-001';

function remove_from_list(list) {
    for( var i = 0; i < list.length; i++) { 
        for( var j =0; j < Object.keys(list[i]).length.length; j++) {
            if(del_value == list[i][j]) {
                list.splice(list[i], 1);
            }
        }
    }
    return list;
}

actual output

data = 
[['true', 'visiting-today', 'DVM-Wiessman','J-001'],
['false', 'visiting-tommorrow', 'DVM-Stevens','K-001'],
['true', 'visiting-tommorrow', 'DVM-Stevens','Z-001'],
['false', 'visiting-tommorrow', 'DVM-Kon','J-001']]

desired result -- to remove all arrays that have the value 'J-001'

data = 
[['false', 'visiting-tommorrow', 'DVM-Stevens','K-001'],
['true', 'visiting-tommorrow', 'DVM-Stevens','Z-001']]

@HassanImam yeah, it would be

bombombs
– bombombs

2022-01-18 04:48:20 +00:00
Commented Jan 18, 2022 at 4:48 — bombombs
– bombombs, Commented Jan 18, 2022 at 4:48

Abhishek Kumar · Accepted Answer · 2022-01-18 05:00:59Z

3

const data = [['true', 'visiting-today', 'DVM-Wiessman','J-001'],
['false', 'visiting-tommorrow', 'DVM-Stevens','K-001'],
['true', 'visiting-tommorrow', 'DVM-Stevens','Z-001'],
['false', 'visiting-tommorrow', 'DVM-Kon','J-001']];

const input = "J-001";


// Approach 
// Filter element (use filter) who has not given input (use not includes for this)
const result = data.filter(dat => !dat.includes(input));

console.log(result);

filter includes

edited Jan 18, 2022 at 5:00

answered Jan 18, 2022 at 4:52

Abhishek Kumar

1,05215 silver badges22 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Hassan Imam · Accepted Answer · 2022-01-18 04:48:00Z

You can use array#filter and array#includes to filter based on array not including J-001.

const data = [['true', 'visiting-today', 'DVM-Wiessman','J-001'], ['false', 'visiting-tommorrow', 'DVM-Stevens','K-001'], ['true', 'visiting-tommorrow', 'DVM-Stevens','Z-001'], ['false', 'visiting-tommorrow', 'DVM-Kon','J-001']],
      result = data.filter(arr => !arr.includes('J-001'));
console.log(result);

.as-console-wrapper { max-height: 100% !important; top: 0; }

If the position of the element is fixed to be third. Then you can use directly compare the value at that index.

const data = [['true', 'visiting-today', 'DVM-Wiessman','J-001'], ['false', 'visiting-tommorrow', 'DVM-Stevens','K-001'], ['true', 'visiting-tommorrow', 'DVM-Stevens','Z-001'], ['false', 'visiting-tommorrow', 'DVM-Kon','J-001']],
      result = data.filter(arr => arr[3] !== 'J-001');
console.log(result);

.as-console-wrapper { max-height: 100% !important; top: 0; }

Rahul Kumar · Accepted Answer · 2022-01-18 05:13:39Z

2

Alternate approach using Array.filter() and Array.find().

data = [['true', 'visiting-today', 'DVM-Wiessman','J-001'],
['false', 'visiting-tommorrow', 'DVM-Stevens','K-001'],
['true', 'visiting-tommorrow', 'DVM-Stevens','Z-001'],
['false', 'visiting-tommorrow', 'DVM-Kon','J-001']];

function removeFromList(list, delValue) {
  return list.filter(arr => !arr.find(value => value === delValue));
}

console.log(removeFromList(data, 'J-001'));

answered Jan 18, 2022 at 5:13

Rahul Kumar

3,1572 gold badges18 silver badges23 bronze badges

Collectives™ on Stack Overflow

Remove an array from an Array if a certain value exists in the array in javascript

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related