Remove elements from an array in JavaScript

delete-element.js

// Remove n elements from the index in_dex
let myArray = ['a', 'b', 'c', 'd', 'e', 'f'];
console.log(myArray.splice(2, 3)); // n = 2, in_dex = 3

// Removes single element
Array.prototype.delete = function(element_to_be_deleted) {
    const index = this.indexOf(element);
    if (index > -1) {
        this.splice(index, 1);
    }
    return this;
};