JAVASCRIPT

delete item from list javascript

const array = [1, 2, 3];
const index = array.indexOf(2);
if (index > -1) {
  array.splice(index, 1);
}

how to remove element from array in javascript

var colors = ["red","blue","car","green"];
var carIndex = colors.indexOf("car");//get  "car" index
//remove car from the colors array
colors.splice(carIndex, 1); // colors = ["red","blue","green"]

remove element from array in js

var myArray = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];

//removing element using splice method -- 
//arr.splice(index of the item to be removed, number of elements to be removed)
//Here lets remove Sunday -- index 0 and Monday -- index 1
  myArray.splice(0,2)

//using filter method
let itemToBeRemoved = ["Sunday", "Monday"]
var filteredArray = myArray.filter(item => !itemToBeRemoved.includes(item))

how to delete element in array in javascript

let value = 3

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

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

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

how to delete an element of an array in javascript

//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*/

delete from list javascript

delete list[item]

delete element of array javascript

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

how to remove item from array javascript

var array = ["Item", "Item", "Delete me!", "Item"]

array.splice(2,1) // array is now ["Item","Item","Item"]

delete an element to an array

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);

delete element from array js

// 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 ]

delete from array javascript

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]*/

Delete item from array

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']

remove an element from array javascript

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

delete array element

const arr = [7, 8, 5, 9];
delete arr[3];
console.log(arr); //[7, 8, 5, empty] 
delete operator removes only an element; Not the space allocated to it.

how to remove an item from an array in javascript

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.

how to delete an element from an array

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

delete an item from array javascript

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]   */

delete array

//Warning !
//Array elements can be deleted using the JavaScript operator delete.
//Using delete leaves undefined holes in the array.
//Use pop() or shift() instead

const fruits = ["Banana", "Orange", "Apple", "Mango"];
delete fruits[0];Warning !
// >> ["undefined", "Orange", "Apple", "Mango"];

  //if you find this answer is useful ,
//upvote ⇑⇑ , so can the others benefit also . @mohammad alshraideh ( ͡~ ͜ʖ ͡°)

JavaScript Array delete()

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

delete value from an array javascript

var list = ["bar", "baz", "foo", "qux"];
    
    list.splice(0, 2); 
    // Starting at index position 0, remove two elements ["bar", "baz"] and retains ["foo", "qux"].

delete value from an array javascript

var list = ["bar", "baz", "foo", "qux"];
    
    list.splice(0, 2); 
    // Starting at index position 0, remove two elements ["bar", "baz"] and retains ["foo", "qux"].

how to delete an element from an array in javascript

["bar", "baz", "foo", "qux"]list.splice(0, 2) // Starting at index position 0, remove two elements ["bar", "baz"] and retains ["foo", "qux"].

JavaScript Remove an Element from an Array

let dailyActivities = ['work', 'eat', 'sleep', 'exercise'];

// remove the last element
dailyActivities.pop();
console.log(dailyActivities); // ['work', 'eat', 'sleep']

// remove the last element from ['work', 'eat', 'sleep']
const removedElement = dailyActivities.pop();

//get removed element
console.log(removedElement); // 'sleep'
console.log(dailyActivities);  // ['work', 'eat']

Delete an element from an array

/*
 * C program to delete an element from array at specified position
 */

#include <stdio.h>
#define MAX_SIZE 100
//this code does not literally delete an element 
//this does rewrite the rest of the array over the element to be deleted 
//and reduceing the count by one
//https://codeforwin.org/2015/07/c-program-to-delete-element-from-array.html
int main()
{
    int arr[MAX_SIZE];
    int i, size, pos;

    /* Input size and element in array */
    printf("Enter size of the array : ");
    scanf("%d", &size);
    printf("Enter elements in array : ");
    for(i=0; i<size; i++)
    {
        scanf("%d", &arr[i]);
    }

    /* Input element position to delete */
    printf("Enter the element position to delete : ");
    scanf("%d", &pos);


    /* Invalid delete position */
    if(pos < 0 || pos > size)
    {
        printf("Invalid position! Please enter position between 1 to %d", size);
    }
    else
    {
        /* Copy next element value to current element */
        for(i=pos-1; i<size-1; i++)
        {
            arr[i] = arr[i + 1];
        }

        /* Decrement array size by 1 */
        size--;

        /* Print array after deletion */
        printf("
Elements of array after delete are : ");
        for(i=0; i<size; i++)
        {
            printf("%d	", arr[i]);
        }
    }

    return 0;
}