Async/Await — The Modern Way to Handle Asynchronous JavaScript

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Welcome to the final day of our journey into JavaScript, DSA, and web development! Today, we’re going to explore async and await, two powerful keywords that make handling asynchronous operations in JavaScript more intuitive and easier to read.

Why Async/Await?

By now, you’ve learned how Promises simplify asynchronous programming compared to traditional callbacks. But even with Promises, chaining then blocks can sometimes feel cumbersome, especially when you have multiple asynchronous tasks that need to be performed in sequence. This is where async and await come in, offering a cleaner, more synchronous-looking syntax for handling asynchronous code.

How Async/Await Works

In simple terms, async and await allow you to write asynchronous code as if it were synchronous. Here's how it works:

• async: The async keyword is added before a function declaration. This automatically makes the function return a Promise, even if it doesn’t explicitly return one.
• await: The await keyword is used inside an async function to pause the execution of the function until the Promise is resolved or rejected. This allows you to write code that looks synchronous but actually operates asynchronously under the hood.