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how to delete an element of an array in javascript

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Witty Wombat answered on February 21, 2020 Popularity 10/10 Helpfulness 4/10

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how to delete an element of an array in javascript

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//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 javascript

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Contributed on May 15 2020

Witty Wombat

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

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 element in array js

Comment

function deleteItem(index) {
  // StartIndex, deleteCount
    array.splice(index, 1); 
}

Popularity 6/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: element javascript

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Contributed on Jun 07 2024

Frail Fowl

0 Answers Avg Quality 2/10

JavaScript Array delete()

Comment

const fruits = ["Banana", "Orange", "Apple", "Mango"];
delete fruits[0];

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on May 22 2022

naly moslih

0 Answers Avg Quality 2/10

delete from array javascript

Comment

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

how to delete an element from an array

Comment

var array = [123, "yee", true];
array.pop(index);

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: element

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Contributed on Feb 21 2020

Spotless Shrike

0 Answers Avg Quality 2/10

How to Remove an Element from a JavaScript Array

Comment

arr.splice(startIndex, deleteCount);

Popularity 9/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: element

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Contributed on Jun 22 2023

Av Test

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

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

how to delete an element of an array in javascript

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