# Advanced JavaScript

This module is about the JavaScript patterns that power backend systems: transforming data with array methods, handling asynchronous operations with callbacks and Promises, consuming APIs, and modeling domains with classes.

## Contents

| Week | Topic                                                                                                                       | Preparation                                                                                                   | Session Plan                                                                                                                  | Assignment                                                                                                  |
| ---- | --------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------- |
| 1.   | [Array Methods](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week1)                         | [Preparation](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week1/preparation) | [Session Plan](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week1/session-plan) (for mentors) | [Assignment](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week1/assignment) |
| 2.   | [Callbacks & Delayed Execution](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week2)         | [Preparation](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week2/preparation) | [Session Plan](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week2/session-plan) (for mentors) | [Assignment](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week2/assignment) |
| 3.   | [Promises & async/await](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week3)                | [Preparation](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week3/preparation) | [Session Plan](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week3/session-plan) (for mentors) | [Assignment](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week3/assignment) |
| 4.   | [Classes & Object-Oriented Programming](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week4) | [Preparation](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week4/preparation) | [Session Plan](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week4/session-plan) (for mentors) | [Assignment](https://program.hackyourfuture.dk/course-content/backend/advanced-javascript/week4/assignment) |

## Module Learning Goals

By the end of this module, you will be able to:

* [ ] Use array methods (`forEach`, `map`, `filter`, `reduce`) to transform, query, and aggregate data
* [ ] Chain array methods into data transformation pipelines
* [ ] Write concise arrow functions with implicit and explicit returns
* [ ] Pass functions as arguments and return functions from functions (higher-order functions)
* [ ] Use callbacks for synchronous and asynchronous operations, including error-first callbacks
* [ ] Explain the difference between synchronous and asynchronous code execution in JavaScript
* [ ] Consume and create Promises using `.then()`, `.catch()`, and `new Promise()`
* [ ] Use `async`/`await` with `try`/`catch` for clean asynchronous code
* [ ] Fetch data from APIs and run parallel requests with `Promise.all()`
* [ ] Declare classes with constructors, methods, and static methods
* [ ] Use inheritance with `extends` and `super()`