JAVASCRIPT

javascript array remove element

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"]

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"]

javascript remove element from array

const cars = ['farrari', 'Ice Cream'/* It is not an car */, 'tata', 'BMW']

//to remove a specific element
cars.splice(colors.indexOf('Ice Cream'), 1);

//to remove the last element
cars.pop();

remove array elements 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 ]

remove item from array

//remove any item from array
const data = ['first', 'second', 'last'];
const filtered_data = data.filter((item) => return item !== 'second');

console.log(filtered_data) // ['first', 'last']

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))

js remove item array

let originalArray = [1, 2, 3, 4, 5];

let filteredArray = originalArray.filter((value, index) => index !== 2);

js remove element from array

const array = [2, 5, 9];

console.log(array);

const index = array.indexOf(5);
if (index > -1) {
  array.splice(index, 1);
}
// array = [2, 9]
console.log(array); 

remove array elements javascript

let forDeletion = [2, 3, 5]

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

arr = arr.filter(item => !forDeletion.includes(item))
// !!! Read below about array.includes(...) support !!!

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

javascript remove element from array

const array = [2, 5, 9];

console.log(array);

const index = array.indexOf(5);
if (index > -1) {
  array.splice(index, 1); // 2nd parameter means remove one item only
}

// array = [2, 9]
console.log(array); 
 Run code snippet

javascript remove array element

array.splice(indexToStartFrom, numbersOfItemsToBeDeleted);
// for deleting only one element
array.splice(index, 1);
//index = index of element in an array;

remove an element from array

var colors = ["red", "blue", "car","green"];

// op1: with direct arrow function
colors = colors.filter(data => data != "car");

// op2: with function return value
colors = colors.filter(function(data) { return data != "car"});

javascript remove element from array

const array = [2, 5, 10];

console.log(array);

const index = array.indexOf(5);
if (index > -1) {
  array.splice(index, 1); // 2nd parameter means remove one item only
}

// array = [2, 9]
console.log(array); 
 Run code snippetHide results

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*/

js remove element from array

function removeItemOnce(arr, value) {
  var index = arr.indexOf(value);
  if (index > -1) {
    arr.splice(index, 1);
  }
  return arr;
}

function removeItemAll(arr, value) {
  var i = 0;
  while (i < arr.length) {
    if (arr[i] === value) {
      arr.splice(i, 1);
    } else {
      ++i;
    }
  }
  return arr;
}
// Usage
console.log(removeItemOnce([2,5,9,1,5,8,5], 5))
console.log(removeItemAll([2,5,9,1,5,8,5], 5))

Remove element from array

const apps = [
  {id:1, name:'test1'}, 
  {id:2, name:'test2'},
  {id:3, name:'test3'}
]
//remove item with id=2
const itemToBeRemoved = {id:2, name:'test2'}
apps.splice(apps.findIndex(a => a.id === itemToBeRemoved.id) , 1)
//print result
console.log(apps)

remove element from array javascript

let fruit = ['apple', 'banana', 'orange', 'lettuce']; 
// ^^ An example array that needs to have one item removed

fruit.splice(3, 1); // Removes an item in the array using splice() method
// First argument is the index of removal
// Second argument is the amount of items to remove from that index and on

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);

javascript remove from array

function arrayRemove(arr, value) { 
    
        return arr.filter(function(ele){ 
            return ele != value; 
        });
    }
    
    var result = arrayRemove(array, 6);
    // result = [1, 2, 3, 4, 5, 7, 8, 9, 0]

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 ]

remove element from array javascript

let numbers = [1,2,3,4]

// to remove last element
let lastElem = numbers.pop()

// to remove first element
let firstElem = numbers.shift()

// both these methods modify array while returning the removed element

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)

js remove element from array

function removeItemOnce(arr, value) {
  var index = arr.indexOf(value);
  if (index > -1) {
    arr.splice(index, 1);
  }
  return arr
}

function removeItemAll(arr, value) {
  var i = 0;
  while (i < arr.length) {
    if (arr[i] === value) {
      arr.splice(i, 1);
    } else {
      ++i;
    }
  }
  return arr;
}
// Usage
console.log(removeItemOnce([2,5,9,1,5,8,5], 5))
console.log(removeItemAll([2,5,9,1,5,8,5], 5))

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.

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]   */

nodejs remove element from array

    
    function arrayRemove(arr, value) { 
    
        return arr.filter(function(ele){ 
            return ele != value; 
        });
    }
    
    var result = arrayRemove(array, 6);
    // result = [1, 2, 3, 4, 5, 7, 8, 9, 0]

remove element array javascript

var arr = ["a", "b", "c", "d", "e"];
arr.shift()
console.log(arr)

remove element from array javascript

//using filter() method => it returns a new array
data = [1, 2, 3, 4, 5, 6];
let filteredData = data.filter((i) => {
    return i > 2
});
console.log(filteredData) // [3, 4, 5, 6]

js remove element from array

let arrDeletedItems = array.splice(start[, deleteCount[, item1[, item2[, ...]]]])

remove array from array javascript

//THE ONLY - REMOVE ARRAY FROM ARRAY
let arr = [1,4,3,4,5];
let toRemove = [4,4];

toRemove.map(n => arr.splice(arr.indexOf(n),1));

how to remove elements from array

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

How to remove to an Array

#include <vector>
#include <iostream>

int main() {
  std::vector<int> v{1, 2, 3};
  v.pop_back();

  std::cout << v.size() << "
";
  std::cout << v.back() << "
";
}

Output:
2
2

JS: remove elements on array

let b = a;
a = [];
console.log(b); // [1,2,3]
Code language: JavaScript (javascript)

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"].

remove array from array javascript

myArray = myArray.filter( ( el ) => !toRemove.includes( el ) );

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;
}