Input/Output: Asynchronous I/O

Objective

Students must use async/await and promises to handle non-blocking operations like image loading and API calls.

Evidence

Asynchronous operations in game components:

• SpriteSheetCoin.js - Image onload callback for sprite loading
• GameLevelOutside.js - Async/await for transitions and level changes
• Multiple APIs - Promise chains for data fetching

Implementation Details

• Callback functions for asynchronous operations
• Promise objects representing future values
• Async/await syntax for readable async code
• Error handling with .catch() or try/catch
• Loading game assets asynchronously

Key Concepts

• Callbacks and callback hell
• Promise states: pending, fulfilled, rejected
• Promise methods: .then(), .catch(), .finally()
• Async/await syntax
• Error handling in promises