P.S I think execution of these asynchronous bits is all together a different topic. A callback function can offer several benefits in your JavaScript code, such as asynchronous programming ...

Learn how to create a callback function in JavaScript and use it for various purposes, such as asynchronous programming, modularity, flexibility, and custom events.

A callback is a simple function that’s passed as a value to another function, and will only be executed when the event happens. We can do this because JavaScript has first-class functions, which can ...

this is how we invoke the execution handling both the fulfillment and rejections. By using in-place anonymous function definitions where we have to place a callback is considered a very bad practice ...