Cisco Javascript Essentials 2 Answers Exclusive Repack Page

Dog.prototype.sound = function() { console.log("The dog barks."); };

Animal.prototype.sound = function() { console.log("The animal makes a sound."); }; cisco javascript essentials 2 answers exclusive

In JavaScript, null represents the intentional absence of any object value, whereas undefined indicates a variable that has been declared but not assigned a value. { // Asynchronous operation setTimeout(() =&gt

const promise = new Promise((resolve, reject) => { // Asynchronous operation setTimeout(() => { resolve("Data loaded successfully."); }, 2000); }); { resolve("Data loaded successfully.")

Dog.prototype = Object.create(Animal.prototype); Dog.prototype.constructor = Dog;

A promise in JavaScript represents a value that may not be available yet, but will be resolved at some point in the future. You can create a promise using the Promise constructor and handle its resolution or rejection using .then() and .catch() methods. For example: