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 ...

When you create a standard Promise you use its constructor and you pass it a function, the executor, that is immediately executed by the constructor. This is the function where you create the ...

Promises are still relatively new and this means that there are asynchronous functions that don't make use of them. This leads on to the need to promisify existing and future code. In this extract ...

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 ...