How to Use Async/Await in JavaScript: A Practical Keyboard Event Example
4. Async/Await for Cleaner Asynchronous Code Async/await is syntactic sugar built on top of Promises. It allows you to write asynchronous code that looks and behaves like synchronous code, making it much easier to read and debug. To demonstrate this, let's create a small interactive demo: when the user presses the Enter key, a message appears. Then, only when the user presses the Spacebar , a second message appears. We'll use async/await to manage this sequence clearly. 🔧 Code Example: // Wait for a specific key to be pressed function waitForKey(keyName) { return new Promise(resolve => { function handler(event) { if (event.key === keyName) { document.removeEventListener('keydown', handler); resolve(); } } document.addEventListener('keydown', handler); }); } async function runSequence() { const output = document.getElementById('output'); output.innerHTML = 'Waiting for Enter key...'...
