Newcomers to programming get used to writing synchronous code during training, when one action happens after another, and whole pages of code are built this way. Simple programs and applications are built on synchronous programming. The problems begin when the teacher moves on to explaining callback functions.
This is already asynchronous programming. This process is important in learning how to write JavaScript code. No complex application can do without asynchronous programming.
Let's take a look at what Callback functions are and how experienced crypto email database list JavaScript programmers write asynchronous code.
What are callback functions?
A callback function is a callback function. The phrase is formed from two English words: call and back. In programming, it is needed to pass executable code as an argument to another code that calls it upon completion of some action.
Note: A callback function is a function that is executed after another function has finished executing.