Cisco Javascript Essentials: 2 Answers Exclusive

function Animal(name) { this.name = name; }

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

Animal.prototype.sound = function() { console.log("The animal makes a sound."); };

Error handling in JavaScript can be achieved using try-catch blocks, where you can catch and handle specific errors. Additionally, you can use the throw statement to throw custom errors.