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

💡Tip: In JavaScript, functions can be stored in variables, passed into other functions as arguments, passed out of functions as return values, and constructed at run-time. The syntax of the function ...

This is of course much clearer, but it relies on asynchronous functions being run in a specific order. However, if you wanted to run async1, async2 or async3 in different orders, it is impossible to ...