Asynchronous JavaScript (Async JS)

Asynchronous JavaScript, often abbreviated as Async JS, is a programming technique that allows JavaScript code to run concurrently with other processes. This is crucial for creating responsive web applications that can handle multiple tasks without blocking the main thread.

Key Concepts

• Callbacks: Functions passed as arguments to other functions. They are executed after the outer function has completed its execution.
• Promises: Objects representing the eventual completion (or failure) of an asynchronous operation and its resulting value.
• Async/Await: A syntax that makes working with promises easier and more readable.

Example

Here is a simple example of using async/await to fetch data from a server:

async function fetchData() {
  const response = await fetch('/api/data');
  const data = await response.json();
  console.log(data);
}

fetchData();

Resources

For further reading, you can visit the following resources:

• MDN Web Docs on Async/Await
• Async JavaScript Tutorial

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