Nodejs Asynchronous File System Core Modules | Callback Functions Explained
In this tutorial, we will touch what is asynchronous version of Javascript and Nodejs.
Asynchronous programming makes it possible to express waiting for long-running actions without freezing the program during these actions.
JavaScript environments typically implement this style of programming using callbacks, functions that are called when the actions complete
//Asynchronous JavaScript:
Asynchronous code allows the program to be executed immediately where the synchronous code will block further execution of the remaining code until it finishes the current one.
// CallBack Functions:
In JavaScript, a callback is a function passed into another function as an argument to be executed later When you pass a callback function into another function, you just pass the reference of the function i.e., the function name without the parentheses().
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