how to remove a value from an array code example

Example 1: remove item from array javascript

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);

Example 2: remove a value from array js

const index = array.indexOf(item);
if (index > -1) {
	array.splice(index, 1);
}

Example 3: how to delete an element from an array

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

Example 4: remove item at index in array javascript

// remove element at certain index without changing original
let arr = [0,1,2,3,4,5]
let newArr = [...arr]
newArr.splice(1,1)//remove 1 element from index 1
console.log(arr) // [0,1,2,3,4,5]
console.log(newArr)// [0,2,3,4,5]

Example 5: how to delete an element from an array in java

import java.util.Scanner;

public class ElemRemoval {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int[] intArr = {1, 2, 5, 12, 7, 3, 8};
        System.out.print("Enter Element to be deleted : ");
        int elem = in.nextInt();
        
        for(int i = 0; i < intArr.length; i++){
            if(intArr[i] == elem){
                // shifting elements
                for(int j = i; j < intArr.length - 1; j++){
                    intArr[j] = intArr[j+1];
                }
                break;
            }
        }
      
        System.out.println("Elements -- " );
        for(int i = 0; i < intArr.length - 1; i++){
            System.out.print(" " + intArr[i]);
        }                
    }
}

Example 6: how to remove a value from an array and return the new array in javascript

var arr = [1, 2, 3, 4, 5, 5, 6, 7, 8, 5, 9, 0];
    
    for( var i = 0; i < arr.length; i++){ 
                                   
        if ( arr[i] === 5) { 
            arr.splice(i, 1); 
            i--; 
        }
    }

    //=> [1, 2, 3, 4, 6, 7, 8, 9, 0]