Asynchronous code (async code) says: go do something while I do other things, then let me know what happened when the results are ready. Also known as concurrency, async is important in a variety of ...

Understanding asynchronous programming is akin to unlocking a powerful toolset for building efficient and responsive web applications. Asynchronous programming is essential to modern JavaScript ...

Interactive Web pages, long dreamed of by designers, are finally here—Web interfaces that respond instantly to user commands, with minimal page redraw. All this and more is possible via Ajax ...

Developers use JavaScript promises to model asynchronous operations in web and server-side programs. Here's a quick look at five ways to use promises in your code. Promises are a central mechanism for ...