remove an element from an array js 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: how to take an element out of an array in javascript

var data = [1, 2, 3];

// remove a specific value
// splice(starting index, how many values to remove);
data = data.splice(1, 1);
// data = [1, 3];

// remove last element
data = data.pop();
// data = [1, 2];

Example 3: js remove from array by value

const index = array.indexOf(item);
if (index !== -1) array.splice(index, 1);

Example 4: remove element from array javascript

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

// Remove all items
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));

Example 5: 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))

Example 6: 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"});