delete specific index array javascript code example

Example 1: js remove from array by value

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

Example 2: pop up element from specific index in array

let items = ['a', 'b', 'c', 'd'];
let index = items.indexOf('a')
let numberOfElementToRemove = 1;
if (index !== -1) { items.splice(index,numberOfElementToRemove)}