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Week 3: JavaScript Deep Dive

Foundation 3 Hours

Advanced JavaScript concepts, focusing on array methods and asynchronous programming.

Learning Objectives

Master advanced array methods and functional programming
Understand asynchronous JavaScript and Promises
Implement API calls and handle responses
Work with async/await for cleaner asynchronous code

Prerequisites

Strong understanding of JavaScript basics from Week 2
Familiarity with DOM manipulation from Week 2
Completion of Week 2 assignments

Detailed Schedule

Session 1: Advanced Array Methods (1 hour)

Functional Programming (30 minutes)

map, filter, reduce methods
Chaining array methods
Arrow functions and callbacks
Immutability and pure functions

Array Manipulation (25 minutes)

find, findIndex, some, every
flat and flatMap
Array.from and Array.of
Array destructuring

Session 2: Asynchronous JavaScript (1 hour)

Callbacks and Promises (30 minutes)

Callback hell and its problems
Promise creation and consumption
Promise chaining
Error handling with .catch()

Async/Await (25 minutes)

async functions
await operator
Error handling with try/catch
Parallel execution with Promise.all()

Teaching Resources

Code Examples

Additional Resources

Assessment

In-Class Exercise

Students will create a todo list application with:

Fetching data from a mock API
Filtering and transforming with array methods
Handling asynchronous calls with async/await

Homework Assignment

Build a weather app using a public API

Tips for Teachers

Common Challenges

Understanding functional programming concepts
Managing promise chains and errors

Teaching Strategies

Use React DevTools for debugging
Break down complex components
Demonstrate state changes visually
Provide starter templates