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delete an item from array javascript

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Creepy Gábor answered on April 29, 2020 Popularity 10/10 Helpfulness 2/10

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-1

let items = [12, 548 ,'a' , 2 , 5478 , 'foo' , 8852, , 'Doe' ,2154 , 119 ]; 
items.length; // return 11 
items.splice(3,1) ; 
items.length; // return 10 
/* items will be equal to [12, 548, "a", 5478, "foo", 8852, undefined × 1, "Doe", 2154,       119]   */

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: stackoverflow.com

Tags: javascript

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Contributed on Nov 20 2020

Creepy Gábor

0 Answers Avg Quality 2/10

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how to delete element in array in javascript

Comment

let value = 3

let arr = [1, 2, 3, 4, 5, 3]

arr = arr.filter(item => item !== value)

console.log(arr)
// [ 1, 2, 4, 5 ]

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: element

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Contributed on Feb 24 2021

Xanthous Xenomorph

0 Answers Avg Quality 2/10

how to delete an element of an array in javascript

Comment

//you can use two functions depending of what you want to do:

let animals1 = ["dog", "cat", "mouse"]
delete animals1[1]
/*this deletes all the information inside "cat" but the element still exists
so now you'll have this:*/
console.log(animals1)//animals1 = ["dog", undefined, "mouse"]

//if you want to delete it completely, you have to use array.splice:

let animals2 = ["dog", "cat", "mouse"]
animals2.splice(1, 1)
/*the first number means the position from which you want to start to delete
and the second is how much elements will be deleted*/
console.log(animals2)//animals2 = ["dog", "mouse"]
/*Now you don't have undefined
If you did this:*/
let animals3 = ["dog", "cat", "mouse"]
animals3.splice(0, 2)//you'll have this:
console.log(animals3)//animals 3 = "mouse"
/*This happens because I put a 2 in the second parameter so it deleted
two elements from position 0
Try copying this code in your console and whatch*/

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: element

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Contributed on May 15 2020

Witty Wombat

0 Answers Avg Quality 2/10

Delete item from array

Comment

const users = ['item1', 'item2', 'item3'];
// delete 'item2'
delete users['item2']
console.log(users); // ['item1', 'item3']
// another way
console.log(users.splice(1, 1)); // ['item1', 'item3']

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Feb 06 2022

Easy Earthworm

0 Answers Avg Quality 2/10

delete element of array javascript

Comment

> let array = ["a", "b", "c"];
> let index = 1;
> array.splice(index, 1);
[ 'b' ]
> array;
[ 'a', 'c' ]

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: bytearcher.com

Tags: element

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Contributed on Jun 15 2021

Jolly Jackal

0 Answers Avg Quality 2/10

delete from array javascript

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var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];var removed = arr.splice(2,2);/*removed === [3, 4]arr === [1, 2, 5, 6, 7, 8, 9, 0]*/

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: love2dev.com

Tags: javascript j

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Contributed on Apr 29 2020

Cooperative Corncrake

0 Answers Avg Quality 2/10

remove an element from array javascript

Comment

let a=[1,2,3,4,5,6,7,8]
//if we want to remove an element with index x
a.splice(x,1)

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: element

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Contributed on Jun 24 2021

TJ Max

0 Answers Avg Quality 2/10

delete element from array js

Comment

// Create a function to do it easily and how many time you want!
const deleteFromArray = (array, value) => {
  let newArray = array.filter(item => item !== value)
  return newArray;
}

var array = [1, 2, 3, 4]
const newArr = deleteFromArray(array, 2)
console.log('Changed array:', newArr);
// Changed array: [ 1, 3, 4 ]

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: element

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Contributed on Jan 13 2022

Rad

0 Answers Avg Quality 2/10

how to remove an item from an array in javascript

Comment

pop - Removes from the End of an Array.
shift - Removes from the beginning of an Array.
splice - removes from a specific Array index.
filter - allows you to programatically remove elements from an Array.

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Source: love2dev.com

Tags: javascript j

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Contributed on Oct 20 2020

Glorious Gnu

0 Answers Avg Quality 2/10

delete an element to an array

Comment

var colors = ["red", "orange", "yellow", "green"];
colors = colors.splice(3, 1); // Starts removing from the third element, and deletes 1 element
// Array.splice(startingElement, elementYouWantToRemove);

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Source: Grepper

Tags: element

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Contributed on May 27 2021

Real Rook

0 Answers Avg Quality 2/10

js delete item from array

Comment

//5 trues , 5 falses
var arr1 = [false, false, true, true, false, true, false, true, true, false];

//remove falses from array
for (var i = 0; i < arr1.length; i++){
    if (arr1[i] === false){
        arr1.splice(i, 1);
        i--;// decrement index if item is removed
    }
}
console.log(arr1);// should be 5 trues
 Run code snippet

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: stackoverflow.com

Tags: javascript j

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Contributed on Nov 30 2022

Outstanding Ox

0 Answers Avg Quality 2/10

delete an item from array javascript

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