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Callbacks play a crucial role in asynchronous JavaScript programming, enabling actions to be executed once certain operations complete. With the introduction of Arrow Functions in ECMAScript 6 (ES6), working with callbacks has become more concise and intuitive.
In this article, we’ll delve into the synergy between Arrow Functions and callbacks, providing practical examples to enhance your understanding.
Understanding Callbacks
Before we dive into Arrow Functions, let’s briefly recap what callbacks are in JavaScript. A callback is simply a function that is passed as an argument to another function and is executed after a specific operation or event occurs.
Common use cases for callbacks include handling asynchronous tasks like fetching data from a server or responding to user interactions.
Here’s a simple example of a callback function:
function fetchData(callback) {
// Simulate fetching data from a server
setTimeout(() => {
const data = { name: "John", age: 30 }…