deleteing element in array by index in javascript 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: js remove from array by value

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