js remove item from array if exists 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: delete item from list javascript

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

Example 3: 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]