Lesson 22: Understanding Promises in JavaScript

Lesson Overview

In this lesson, we will learn about Promises in JavaScript, a powerful feature for handling asynchronous operations.

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Code Example

const myPromise = new Promise((resolve, reject) => {
    // Simulate an asynchronous operation
    setTimeout(() => {
        const success = true; // Change to false to simulate failure
        if (success) {
            resolve("Operation was successful!");
        } else {
            reject("Operation failed.");
        }
    }, 2000);
});

myPromise
    .then(result => console.log(result))
    .catch(error => console.error(error));