Using splice() to Remove Elements code example

Example 1: remove a particular element from array

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"]

Example 2: array remove index from array

const array = [2, 5, 9];

//Get index of the number 5
const index = array.indexOf(5);
//Only splice if the index exists
if (index > -1) {
  //Splice the array
  array.splice(index, 1);
}

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

Example 3: js remove item array

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

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

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: remove one element using splice

fruits = ['Banana', 'Orange', 'Apple', 'Mango'];

removeFruitByIndex(index: number) {
  this.fruits = [
    ...this.fruits.slice(0, i),
    ...this.fruits.slice(i + 1, this.fruits.length),
  ];
}


removeFruitByValue(fruite: string) {
  const i = this.descriptionsList.indexOf(fruite);
  this.fruits = [
    ...this.fruits.slice(0, i),
    ...this.fruits.slice(i + 1, this.fruits.length),
  ];
}

Example 6: remove element from array javascript

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

// to remove last element
let last_num = numbers.pop();
// numbers will now be [1,2,3]

// to remove first element
let first_num = numbers.shift();
//numbers will now be [2,3]

// to remove at an index
let number_index = 1
let index_num = numbers.splice(number_index,1); //removes 1 element at index 1
//numbers will now be [2]

//these methods will modify the numbers array and return the removed element